How To Fuse Every Persona In Persona 5 Strikers

This article is part of a directory: Persona 5 Strikers Complete Guide And Walkthrough

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There are plenty of Personas to collect and fuse in Persona 5 Strikers, and completing the inmate registry (collecting all Personas) will reward you with the Mask Connoisseur trophy. However, completing this registry is easier said than done, as some Personas can only be fused once you have obtained specific items from defeating Powerful Shadows.

There are 67 Personas in total to complete the Persona compendium, and the final Persona, Lucifer, can only be obtained in New Game Plus, which you can only unlock by defeating the Reaper. We've got a full list of every Persona right here, as well as every fusion combination to obtain them and any other additional details you need to know.

Guide To The Velvet Room

The Velvet Room is your base of operations for Personas. There are three options available when you enter this place, and here's a rundown of each one.

Create New Personas (Executions)

When you first begin Strikers, you will only have one execution method that can combine two different Personas. As you progress through the game, you will unlock more combinations that allow for three, four, and even five Personas to be fused in one go. Here are some key things to know about fusion:

In order to fuse a Persona, you must be at a high enough level to control it, meaning that you need to be at the same level as the Persona or higher to fuse it.
Persona fusions require the base Personas involved in the fusion to be at a minimum level, you can see the required level of each on the fusion screen.
You don't need all the Personas equipped to Joker in order to fuse them. If you have owned them before, Lavenza will still allow the fusion, albeit at a cost.
Personas created from fusions can receive stat bonuses, making them stronger than others you simply obtain from masks. The chance of a stat bonus increases if you are fusing a base Persona that has been fused many times before.
When you fuse a Persona, you can choose a number of skills for the resulting Persona to inherit, which is the main way to achieve the Prison Mail requests.
There is a chance that your fusion will have a random result rather than the one intended, this is called a fusion accident. However, these accidental Personas are usually stronger than other Personas.

Persona Enhancement (Mask Fusion)

The Persona Enhancement option allows you to level up your Personas by using Persona points. You can only strengthen your Persona's level to the equivalent of Joker's level. Later on in the game, you will receive an additional enhancement option that lets you level up the individual stats of your Personas using Persona points.

Register/Summon Personas (Inmate Registry)

This is where you can summon any previously owned Personas for a cost. You can register your Personas to save them in that current condition, in terms of level and learned skills. You can re-register a Persona at any time to overwrite its saved condition in the registry. You can also see your current Persona Registry completion percentage here.

Personas are obtained from fusion or from collecting masks in the Metaverse. If you are already carrying your maximum number of Personas and pick up a mask of a Persona you do not own, it will still be added to the registry and the fee will be waived for the first time you summon it. Purchasing and upgrading the Joker's Wild Bond Skill will increase the chance of masks manifesting in Jails.

By the end of the game, you'll likely have a lot more money than you do Persona points. An easy way to get Persona points is to summon Personas and then immediately delete them to earn points. You can delete Personas from the main menu at any time, or from the Persona Enhancement screen in the Velvet Room.

Abaddon

Arcana: Judgement
Base Skill: Curse
Base Level: 66

Fusion Combinations:

Kaiwan (59) + Mithras (58)
Legion (53) + Black Ooze (54) + Pisaca (57)
Kaiwan (59) + Ganesha (58)
Neko Shogun (59) + Mithras (58)
Neko Shogun (59) + Ganesha (58)
Kaiwan (59) + Yatagarasu (58)
Neko Shogun (59) + Yatagarasu (58)
Bugs (53) + Black Ooze (54) + Pisaca (57)
Legion (53) + Lilith (54) + Pisaca (57)
Cu Chulainn (59) + Mithras (58)
Cu Chulainn (59) + Ganesha (58)
Legion (53) + Black Ooze (54) + Mot (57)
Bugs (53) + Lilith (54) + Pisaca (57)
Cu Chulainn (59) + Yatagarasu (58)
Bugs (53) + Black Ooze (54) + Mot (57)
Legion (53) + Lilith (54) + Mot (57)
Bugs (53) + Lilith (54) + Mot (57)

Alice

Arcana: Death
Base Skill: Curse
Base Level: 75

Fusion Combinations:

Nebiros (65) + Lilith (65) + Bugs (65) + Dominion (65)

Ame-no-Uzume

Arcana: Lovers
Base Skill: Ice
Base Level: 23

Fusion Combinations:

Slime (12) + High Pixie (16) + Berith (15)
Orthrus (21) + Lamia (18)
Slime (12) + Arsene (16) + Berith (15)
Hua Po (21) + Lamia (18)

Andras

Arcana: Devil
Base Skill: Ice
Base Level: 10

Fusion Combinations:

Nebiros (55) + Lilim (25)
Lilim (25) + Succubus (11)
Silky (6) + Mokoi (8)

Arahabaki

Arcana: Hermit
Base Skill: Curse
Base Level: 36

Fusion Combinations:

Kurama Tengu (52) + Naga (44)
Naga (44) + Neko Shogun (37)
Black Ooze (33) + Eligor (31)
Black Ooze (33) + Setanta (31)
Mothman (33) + Eligor (31)
Mothman (33) + Setanta (31)
Succubus (33) + Eligor (31)
Succubus (33) + Setanta (31)

Archangel

Arcana: Justice
Base Skill: Bless
Base Level: 19

Fusion Combinations:

Hua Po (13) + Arsene (16)
Dominion (21) + Principality (27)
Metatron (80) + Dominion (62)
Principality (27) + Orthus (21)
Metatron (80) + Principality (27)
Hua Po (13) + High Pixie (16) (Prison Mail Part 1 Request available on August 11th. Use a level 14 Hua Po and choose Amrita Drop as one of the inherited skills)
Jack-o'-Lantern (2) + Silky (6) + Andras (10)

Arsene

Arcana: Fool
Base Skill: Curse
Base Level: 1

Fusion Combinations:

Bugs (53) + Legion (34)
Bugs (53) + High Pixie (16)
Legion (34) + High Pixie (16)
High Pixie (16) + Jack-o'-Lantern (2)

Berith

Arcana: Hierophant
Base Skill: Support
Base Level: 15

Fusion Combinations:

Forneus (60) + Unicorn (38)
Unicorn (38) + High Pixie (16)
Andras (10) + Mokoi (8)

Bicorn

Arcana: Hermit
Base Skill: Wind
Base Level: 4

Fusion Combinations:

Kurama Tengu (52) + Naga (44)
Kurama Tengu (52) + Arahabaki (36)
Arahabaki (36) + Naga (44)
Arahabaki (36) + Silky (6)
Jack-o'-Lantern (2) + Pixie (2)

Black Frost

Black Frost can only be fused once you have obtained the Evil Snow Crystal, which is the reward for completing the "Halt The Strutting Little Imp" request given on August 25th.

Arcana: Fool
Base Skill: Ice
Base Level: 67

Fusion Combinations:

Jack-o'-Lantern (45) + King Frost (65) + Jack Frost (45)

Black Ooze

Arcana: Moon
Base Skill: Curse
Base Level: 33

Fusion Combinations:

Lilith (54) + Mitra (33)
Jack Frost (24) + Lilim (25)
Jack-o'-Lantern (24) + Lilim (25)
Jack Frost (24) + Andras (25)
Jack-o'-Lantern (24) + Andras (25)

Bugs

Arcana: Fool
Base Skill: Psy
Base Level: 53

Fusion Combinations:

Raja Naga (50) + Ganesha (47)
Pisaca (40) + Pixie (40)
Black Frost (67) + Lilith (54)

Cerberus

Cerberus can only be fused once you have obtained the Collar of Hell, which is the reward for completing the "The Hound Of Hades Howls" request given on August 24th.

Arcana: Chariot
Base Skill: Fire
Base Level: 57

Fusion Combinations:

Orthrus (50) + Raja Naga (50)
Thor (61) + Yatagarasu (58)

Cu Chulainn

Arcana: Star
Base Skill: Physical
Base Level: 59

Fusion Combinations:

Legion (53) + Lilim (55) + Black Ooze (54)
Andras (55) +Mot (57)
Lilim (55) + Mot (57)
Bugs (53) + Lilim (55) + Black Ooze (54)
Legion (53) + Lilim (55) + Lilith (54)
Legion (53) + Nebiros (55) + Black Ooze (54)
Nebiros (55) + Mot (57) (Prison Mail Part 8 Request available on August 30th. Use a level 59 Mot and choose Concentrate as one of the inherited skills)
Bugs (53) + Lilim (55) + Lilith (54)
Bugs (53) + Nebiros (55) + Black Ooze (54)
Legion (53) + Nebiros (55) + Lilith (54)
Bugs (53) + Nebiros (55) + Lilith (54)

Dominion

Arcana: Justice
Base Skill: Bless
Base Level: 62

Fusion Combinations:

Berith (60) + Mot (57)
Metatron (80) + King Frost (63)
Unicorn (60) + Mot (57)
Forneus (60) + Mot (57) (Prison Mail Part 9 Request available on August 30th. Use a level 62 Mot and choose Nuke Amp as one of the inherited skills)

Eligor

Arcana: Emperor
Base Skill: Fire
Base Level: 31

Fusion Combinations:

King Frost (63) + Okuninushi (42)
Okuninushi (42) + Mitra (33)
Ame-no-Uzume (23) + Lilim (25) (Prison Mail Part 2 Request available on August 11th. Use a level 29 Ame-no-Uzume and choose Divine Grace as one of the inherited skills)
Berith (15) + Slime (12) + Lamia (18)
Pixie (23) + Lilim (25)
Ame-no-Uzume (23) + Andras (25)
Pixie (23) + Andras (25)

Forneus

Arcana: Hierophant
Base Skill: Psy
Base Level: 60

Fusion Combinations:

Succubus (54) + Bicorn (51)
Mothman (54) + Bicorn (51)
Black Ooze (54) + Bicorn (51)
Succubus (54) + Arahabaki (51)
Succubus (54) + Naga (51)
Mothman (54) + Arahabaki (51)
Black Ooze (54) + Arahabaki (51)
Mothman (54) + Naga (51)
Succubus (54) + Kurama Tengu (52)
Black Ooze (54) + Naga (51)
Lilith (54) + Bicorn (51)
Mothman (54) + Kurama Tengu (52)
Black Ooze (54) + Kurama Tengu (52)
Lilith (54) + Arahabaki (51)
Lilith (54) + Naga (51)
Lilith (54) + Kurama Tengu (52)

Fortuna

Arcana: Fortune
Base Skill: Wind
Base Level: 49

Fusion Combinations:

Valkyrie (45) + Mithras (41)
Norn (53) + Raja Naga (50)

Ganesha

Arcana: Sun
Base Skill: Nuclear
Base Level: 47

Fusion Combinations:

Jack-o'-Lantern (43) + Setanta (42)
Jack-o'-Lantern (43) + Eligor (42)
Jack Frost (43) + Setanta (42)
Jack Frost (43) + Eligor (42)
Jack-o'-Lantern (43) + Okuninushi (42)
Jack Frost (43) + Okuninushi (42)
Queen Mab (43) + Setanta (42)
Queen Mab (43) + Eligor (42)
Queen Mab (43) + Okuninushi (42)
Yatagarasu (58) + Sarasvati (48)

Hecatoncheires

Arcana: Hanged Man
Base Skill: Physical
Base Level: 46

Fusion Combinations:

Mothman (33) + Bicorn (36) + High Pixie (34)
Berith (38) + Mitra (39)
Black Ooze (33) + Bicorn (36) + High Pixie (34)
Berith (38) + Koppa Tengu (39)
Mothman (33) + Bicorn (36) + Legion (34)
Black Ooze (33) + Bicorn (36) + Legion (34)
Mothman (33) + Arahabaki (36) + High Pixie (34)
Unicorn (38) + Mitra (39)
Black Ooze (33) + Arahabaki (36) + High Pixie (34)
Unicorn (38) + Koppa Tengu (39)
Mothman (33) + Arahabaki (36) + Legion (34)
Black Ooze (33) + Arahabaki (36) + Legion (34)

High Pixie

Arcana: Fool
Base Skill: Wind
Base Level: 16

Fusion Combinations:

Black Frost (67) + Bugs (53)
Black Frost (67) + Legion (34)
Bugs (53) + Legion (34)
Legion (34) + Archangel (19)
Slime (12) + Succubus (11)

Hua Po

Arcana: Hanged Man
Base Skill: Fire
Base Level: 13

Fusion Combinations:

Hecatoncheires (46) + Orthrus (21)
Orthrus (21) + Berith (15)
Succubus (11) + Andras (10)
Jack-o'-Lantern (2) + Pixie (2) + Silky (6)

Jack Frost

Arcana: Magician
Base Skill: Ice
Base Level: 24

Fusion Combinations:

Queen Mab (43) + Lilim (25)
Lamia (18) + High Pixie (16)

Jack-o'-Lantern

Arcana: Magician
Base Skill: Fire
Base Level: 2

Fusion Combinations:

Queen Mab (43) + Jack Frost (24)
Jack Frost (25) + Pixie (2)

Kaiwan

Arcana: Star
Base Skill: Psy
Base Level: 30

Fusion Combinations:

Cu Chulainn (59) + Neko Shogun (37)
Neko Shogun (37) + Eligor (31)
Setanta (26) + Principality (27) (Prison Mail Part 3 Request available on August 11th. Choose Makouga as one of the inherited skills)
Setanta (26) + Archangel (27)

Kali

Arcana: Empress
Base Skill: Psy
Base Level: 64

Fusion Combinations:

Slime (57) + Berith (60)
Shiisaa (57) + Berith (60)
Slime (57) + Unicorn (60)
Shiisaa (57) + Unicorn (60)
Cerberus (57) + Berith (60)
Slime (57) + Forneus (60)
Cerberus (57) + Unicorn (60)
Shiisaa (57) + Forneus (60)
Cerberus (57) + Forneus (60)

Kikuri-Hime

Arcana: Priestess
Base Skill: Support
Base Level: 40

Fusion Combinations:

Sarasvati (48) + Mithras (41)
Neko Shogun (37) + Arahabaki (36)
Kaiwan (37 )+ Arahabaki (36)
Neko Shogun (37) + Bicorn (36)
Kaiwan (37) + Bicorn (36)

King Frost

King Frost can only be fused once you have obtained the Giant Snow Crystal, which is the reward for completing the "Make The Way For The Frozen King" request given on August 25th.

Arcana: Emperor
Base Skill: Ice
Base Level: 63

Fusion Combinations:

Jack-o'-Lantern (40) + Jack Frost (40)

Koppa Tengu

Arcana: Temperance
Base Skill: Wind
Base Level: 39

Fusion Combinations:

Bicorn (36) + Kaiwan (30)
Raja Naga (50) + Kikuri-Hime (40)
Arahabaki (36) + Kaiwan (30)

Kurama Tengu

Arcana: Hermit
Base Skill: Wind
Base Level: 52

Fusion Combinations:

Jack-o'-Lantern (43) + Mithras (47)
Jack-o'-Lantern (43) + Ganesha (47)
Jack Frost (43) + Mithras (47)
Jack Frost (43) + Ganesha (47)
Kaiwan (37) + Mitra (39) + Eligor (42)
Queen Mab (43) + Mithras (47)
Kaiwan (37) + Koppa Tengu (39) + Eligor (42)
Neko Shogun (37) + Mitra (39) + Eligor (42)
Queen Mab (43) + Ganesha (47)
Neko Shogun (37) + Koppa Tengu (39) + Eligor (42)
Kaiwan (37) + Mitra (39) + Okuninushi (42)
Kaiwan (37) + Koppa Tengu (39) + Okuninushi (42)
Neko Shogun (37) + Mitra (39) + Okuninushi (42)
Neko Shogun (37) + Koppa Tengu (39) + Okuninushi (42)

Lamia

Arcana: Empress
Base Skill: Fire
Base Level: 18

Fusion Combinations:

Kali (64) + Archangel (19)
Hua Po (13) + Slime (12)

Legion

Arcana: Fool
Base Skill: Psy
Base Level: 34

Fusion Combinations:

Black Frost (67) + Bugs (53)
Bugs (53) + Shiisaa (35)
Kaiwan (30) + Setanta (26)

Lilim

Arcana: Devil
Base Skill: Support
Base Level: 25

Fusion Combinations:

Nebrios (55) + Setanta (26)
Orthrus (21) + Pisaca (22)
Hua Po (21) + Pisaca (22)
Hua Po (21) + Mokoi (22)
Orthrus (21) + Mokoi (22)

Lilith

Arcana: Moon
Base Skill: Ice
Base Level: 54

Fusion Combinations:

Fortuna (49) + Hua Po (46)
Fortuna (49) + Orthrus (46)
Fortuna (49) + Hecatoncheires (46)

Lucifer

Lucifer can only be fused in New Game+ and you must be level 90 in order to fuse him.

Arcana: Star
Base Skill: Almighty
Base Level: 90

Fusion Combinations:

Black Frost (67) + Mara (72) + Metatron (80) + Alice (75) + Yoshitsune (78)

Mara

Mara can only be fused once you have obtained the Carnal King’s Wheel, which is the reward for completing the "The Writhing Nightmare Rising" request given on August 28th.

Arcana: Tower
Base Skill: Fire
Base Level: 72

Fusion Combinations:

Yoshitsune (78) + Alice (75)
Cerberus (70) + Kali (70) + Abaddon (70)

Metatron

Metatron can only be fused once you have obtained the Contract Slab, which is the reward for completing the "Angel Of Contracts Descends" request given on August 30th.

Arcana: Justice
Base Skill: Bless
Base Level: 80

Fusion Combinations:

Archangel (80) + Principality (60) + Trumpeter (65) + Dominion (65)

Mithras

Arcana: Sun
Base Skill: Nuclear
Base Level: 41

Fusion Combinations:

Mitra (33) + Slime (35)
Jack-o'-Lantern (24) + Kaiwan (30) + Archangel (27)
Jack-o'-Lantern (24) + Kaiwan (30) + Principality (27)
Jack Frost (24) + Kaiwan (30) + Archangel (27)
Mitra (33) + Shiisaa (35)
Jack Frost (24) + Kaiwan (30) + Principality (27)
Ganesha (47) + Okuninushi (42)
Yatagarasu (58) + Ganesha (47)

Mitra

Arcana: Temperance
Base Skill: Bless
Base Level: 33

Fusion Combinations:

Jack Frost (24) + Andras (25) + Mothman (28)
Jack-o'-Lantern (24) + Andras (25) + Mothman (28)
Raja Naga (50) + Koppa Tengu (39)
Koppa Tengu (39) + Legion (34)
Jack Frost (24) + Lilim (25) + Mothman (28)
Eligor (31) + Principality (27)
Jack-o'-Lantern (24) + Lilim (25) + Mothman (28)
Setanta (31) + Principality (27) (Prison Mail Part 4 Request available on August 17th. Choose Regenerate 1 as one of the inherited skills)
Eligor (31) + Archangel (27)
Setanta (31) + Archangel (27)

Mokoi

Arcana: Death
Base Skill: Support
Base Level: 8

Fusion Combinations:

Alice (75) + Mot (57)
Alice (75) + Pisaca (22)
Mot (57) + Pisaca (22)
Pisaca (22) + Andras (10)
Bicorn (4) + Jack-o'-Lantern (2)

Mot

Arcana: Death
Base Skill: Nuclear
Base Level: 57

Fusion Combinations:

Arsene (53) + Fortuna (53)
High Pixie (53) + Fortuna (53)
Arsene (53) + Norn (53)
High Pixie (53) + Norn (53)
Legion (53) + Fortuna (53)
Legion (53) + Norn (53)
Bugs (53) + Fortuna (53)
Bugs (53) + Norn (53)
Alice (75) + Cerberus (57)

Mothman

Arcana: Moon
Base Skill: Electricity
Base Level: 28

Fusion Combinations:

Andras (25) + Orthrus (21)
Andras (25) + Hua Po (21)
Lilith (54) + Black Ooze (33)
Black Ooze (33) + Kaiwan (30)
Lilim (25) + Orthrus (21)
Lilim (25) + Hua Po (21)

Naga

Arcana: Hermit
Base Skill: Electricity
Base Level: 44

Fusion Combinations:

Mitra (39) + Silky (40)
Koppa Tengu (39) + Silky (40)
Mitra (39) + Kikuri-Hime (40)
Koppa Tengu (39) + Kikuri-Hime (40)
Kurama Tengu (52) + Valkyrie (45)

Nebiros

Arcana: Devil
Base Skill: Curse
Base Level: 55

Fusion Combinations:

Silky (48) + Mitra (50)
Silky (48) + Koppa Tengu (50)
Silky (48) + Raja Naga (50)
Kikuri-Hime (48) + Mitra (50)
Kikuri-Hime (48) + Koppa Tengu (50)
Sarasvati (48) + Mitra (50)
Sarasvati (48) + Koppa Tengu (50)
Kikuri-Hime (48) + Raja Naga (50)
Sarasvati (48) + Raja Naga (50)

Neko Shogun

Arcana: Star
Base Skill: Fire
Base Level: 37

Fusion Combinations:

Mitra (33) + Succubus (28)
Cu Chulainn (59) + Unicorn (38)
Mitra (33) + Mothman (28)

Norn

Arcana: Fortune
Base Skill: Wind
Base Level: 53

Fusion Combinations:

Mitra (50) + Mithras (47)
Koppa Tengu (50) + Mithras (47)
Mitra (50) + Ganesha (47)
Koppa Tengu (50) + Ganesha (47)
Raja Naga (50) + Mithras (47)
Raja Naga (50) + Ganesha (47)

Okuninushi

Arcana: Emperor
Base Skill: Psy
Base Level: 42

Fusion Combinations:

Kaiwan (37) + Arsene (34)
Kaiwan (37) + High Pixie (34)
Neko Shogun (37) + Arsene (34)
Neko Shogun (37) + High Pixie (34)
Kaiwan (37) + Legion (34)
Neko Shogun (37) + Legion (34)
King Frost (63) + Queen Mab (43)

Orthrus

Arcana: Hanged Man
Base Skill: Nuclear
Base Level: 21

Fusion Combinations:

Hecatoncheires (46) + Pisaca (22)
Berith (15) + High Pixie (16)
Berith (15) + Arsene (16)

Pisaca

Arcana: Death
Base Skill: Curse
Base Level: 22

Fusion Combinations:

Alice (75) + Mot (57)
Mot (57) + Ame-no-Uzume (23)
Archangel (19) + Slime (12)

Pixie

Arcana: Lovers
Base Skill: Healing
Base Level: 2

Fusion Combinations:

Ame-no-Uzume (23) + Bicorn (4)

Principality

Arcana: Justice
Base Skill: Healing
Base Level: 27

Fusion Combinations:

Mokoi (22) + Pixie (23)
Dominion (62) + Mothman (28)
Metatron (80) + Dominion (62)
Pisaca (22) + Ame-no-Uzume (23)
Pisaca (22) + Pixie (23)
Mokoi (22) + Ame-no-Uzume (23)

Queen Mab

Arcana: Magician
Base Skill: Fire
Base Level: 43

Fusion Combinations:

Silky (40) + Kaiwan (37)
Silky (40) + Neko Shogun (37)
Mitra (39) + Silky (40) + Eligor (42)
Kikuri-Hime (40) + Kaiwan (37) (Prison Mail Part 6 Request available on August 24th. Choose Technical Adept as one of the inherited skills)
Koppa Tengu (39) + Silky (40) + Eligor (42)
Kikuri-Hime (40) + Neko Shogun (37)
Mitra (39) + Silky (40) + Okuninushi (42)
Koppa Tengu (39) + Silky (40) + Okuninushi (42)
Mitra (39) + Kikuri-Hime (40) + Eligor (42)
Koppa Tengu (39) + Kikuri-Hime (40) + Eligor (42)
Mitra (39) + Kikuri-Hime (40) + Okuninushi (42)
Koppa Tengu (39) + Kikuri-Hime (40) + Okuninushi (42)

Raja Naga

Arcana: Temperance
Base Skill: Electricity
Base Level: 50

Fusion Combinations:

Bicorn (44) + Hua Po (46)
Bicorn (44) + Orthrus (46)
Arahabaki (44) + Hua Po (46)
Arahabaki (44) + Orthrus (46)
Naga (44) + Hua Po (46)
Bicorn (44) + Hecatoncheires (46)
Naga (44) + Orthrus (46)
Arahabaki (44) + Hecatoncheires (46)
Naga (44) + Hecatoncheires (46)

Sarasvati

Arcana: Priestess
Base Skill: Healing
Base Level: 48

Fusion Combinations:

Valkyrie (45) + Bicorn (44)
Valkyrie (45) + Arahabaki (44)
Valkyrie (45) + Naga (44)

Setanta

Arcana: Emperor
Base Skill: Nuclear
Base Level: 26

Fusion Combinations:

King Frost (63) + Okuninushi (42)
King Frost (63) + Eligor (31)
Okuninushi (42) + Eligor (31)
Eligor (31) + Principality (27)
Jack Frost (24) + Archangel (19)
Jack-o'-Lantern (24) + Archangel (19)

Seth

Seth can only be fused once you have obtained the Beastly Was-Sceptre, which is the reward for completing the "An Ebon God Descends" request given on August 24th.

Arcana: Tower
Base Skill: Curse
Base Level: 51

Fusion Combinations:

Mithras (45) + Koppa Tengu (45)
Mara (72) + Kurama Tengu (52)
Yoshitsune (78) + Mara (72)

Shiisaa

Arcana: Chariot
Base Skill: Electricity
Base Level: 35

Fusion Combinations:

Succubus (28) + Jack Frost (24)
Succubus (28) + Jack-o'-Lantern (24)
Thor (61) + Cerberus (57)
Cerberus (57) + Arahabaki (36)
Mothman (28) + Jack Frost (24)
Mothman (28) + Jack-o'-Lantern (24)

Siegfried

Siegfried can only be fused once you have obtained the Dragon Slayer Blade, which is the reward for completing the "Dragon Slayer Enters The Fray" request given on August 28th.

Arcana: Strength
Base Skill: Physical
Base Level: 69

Fusion Combinations:

Seth (65) + Thor (65)

Silky

Arcana: Priestess
Base Skill: Ice
Base Level: 6

Fusion Combinations:

Sarasvati (48) + Kikuri-Hime (40)
Kikuri-Hime (40) + Mokoi (8)
Pixie (2) + Bicorn (4)

Slime

Arcana: Chariot
Base Skill: Curse
Base Level: 12

Fusion Combinations:

Thor (61) + Cerberus (57)
Thor (61) + Shiisaa (35)
Cerberus (57) + Shiisaa (35)
Shiisaa (35) + Hua Po (13)
Mokoi (8) + Bicorn (4)

Succubus

Arcana: Moon
Base Skill: Psy
Base Level: 11

Fusion Combinations:

Lilith (54) + Black Ooze (33)
Lilith (54) + Mothman (28)
Black Ooze (33) + Mothman (28)
Mothman (28) + Slime (12)
Arsene (1) + Silky (6)

Thor

Arcana: Chariot
Base Skill: Electric
Base Level: 61

Fusion Combinations:

Trumpeter (56) + Andras (55)
Trumpeter (56) + Lilim (55)
Trumpeter (56) + Nebiros (55)
Valkyrie (45) + Mithras (47) + Fortuna (49)
Valkyrie (45) + Ganesha (47) + Fortuna (49)

Trumpeter

Arcana: Judgement
Base Skill: Nuclear
Base Level: 56

Fusion Combinations:

Fortuna (53) + Silky (48)
Norn (53) + Silky (48)
Fortuna (53) + Kikuri-Hime (48)
Norn (53) + Kikuri-Hime (48)
Fortuna (53) + Sarasvati (48)
Norn (53) + Sarasvati (48) (Prison Mail Part 7 Request available on August 28th. Use a level 54 Norn and choose Diarahan as one of the inherited skills)
Arahabaki (44) + Kikuri-Hime (48) + Valkyrie (45)
Naga (45) + Kikuri-Hime (48) + Valkyrie (45)
Arahabaki (44) + Sarasvati (48) + Valkyrie (45)
Naga (45) + Sarasvati (48) + Valkyrie (45)
Abaddon (66) + Mot (57)

Unicorn

Arcana: Hierophant
Base Skill: Nuclear
Base Level: 38

Fusion Combinations:

Forneus (60) + Koppa Tengu (39)
Arahabaki (36) + Shiisaa (35) + Legion (34)
Shiisaa (35) + Black Ooze (33) (Prison Mail Part 5 Request available on August 23rd. Choose Zionga as one of the inherited skills)
Arahabaki (36) + Shiisaa (35) + High Pixie (34)
Arahabaki (36) + Slime (35) + Legion (34)
Bicorn (36) + Shiisaa (35) + Legion (34)
Shiisaa (35) + Mothman (33)
Arahabaki (36) + Slime (35) + High Pixie (34)
Bicorn (36) + Shiisaa (35) + High Pixie (34)
Bicorn (36) + Slime (35) + Legion (34)
Shiisaa (35) + Succubus (33)
Slime (35) + Black Ooze (33)
Slime (35) + Mothman (33)
Bicorn (36) + Slime (35) + High Pixie (34)
Slime (35) + Succubus (33)