Unlike most other RPGs, Genshin Impact has multiple ways of powering up your characters besides just killing monsters and completing quests to earn XP. Eventually you will reach a point where you need to ascend your characters to allow them to continue growing, but ascension isn't free. You'll need to spend specific materials in order to keep your characters at the top of their game, and different characters require different materials. The Hoarfrost Cores are just one of these materials, but absolutely vital for almost every party that utilizes a Cryo based character. Here's where you can find Hoarfrost Cores and ascend your characters.
How To Get Hoarfrost Cores
Hoarfrost Cores are only obtainable by defeating a specific enemy, Cryo Regisvine. The trouble doesn't just end with finding one of these specific enemies, but actually taking them down, too. These creatures are level 37, and possibly higher, so you'll need a strong team to bring one down.
First off, you can find a Cryo Regisvine easily by heading to the Thousands Winds Temple in the East of Mondstadt and heading South. You'll have no trouble spotting the massive blue plant that is the Cryo Regisvine.
Taking this big plant monster down will be tough, but there are a few ways you can even the odds a bit. The name gives away that it is a Cryo based monster, so buff yourself with as much Cryo resistance as you can, and bring out your strongest Pyro, or Electro and Hydro, characters. It has a bunch of attacks you'll need to be aware of, but your primary focus should be on hammering on the core at its base.
If you see it start to spin its head around, backdash to avoid the hit. It may also attempt to crush you if you stay in close for too long, so only do one combo or ability before backing off to stay safe. That said, the Cryo Regisvine does have a bunch of ranged options as well, such as lasers and summoning homing icicles, but if you have enough stamina you can dash to avoid them all and get some easy hits in.
Once you break the core on the base, the head will become the only weak point for a while. Either take out an archer to hit it from afar, wait for it to do the head slam attack and hit it while the head is lowered, or hold out long enough for the core to appear on the base again.
Once killed, you are guaranteed to get at least one Hoarfrost Core, but you might get lucky and have it drop two. Either way, you will need to spend some of your Original Resin in order to claim the rewards. Touch the Trounce Blossom that appears and it will prompt you to revitalize the Ley Line Blossom for 40 Original Resin to claim your reward.
You can use these cores to ascend all of your Cryo based characters, such as Qiqi. If you need additional Hoarfrost Cores, which you will considering the amount you need will increase for each ascension level, you will need to wait for the Cryo Regisvine to respawn and repeat the process.
For more Genshin Impact guides, be sure to check out our Genshin Impact complete guide and walkthrough.