The Pokemon franchise is designed around single-player experiences and PVP multiplayer battles. It's not built for the group party dynamics of a game like Dungeons & Dragons, but the monsters from Pokemon can still be used as enemies for parties to face. To this end, we have statted out Tangela for use in D&D adventures.
The developers of Pokemon Red & Blue made some types rarer than others. There were only a handful of Ghost and Dragon-types in the entire first generation of Pokemon games. Meanwhile, there were tons of Normal, Flying, and Grass-type Pokemon. One of these was Tangela, which didn't really stand out from the crowd in the days of Pokemon Red & Blue, as most of the other Grass-types had multiple evolutions. Tangela gained an evolution in Pokemon Diamond & Pearl, in the form of Tangrowth, which looked like Tangela if it went to Jamaica for a summer.
Tangela's Stats
Druids and rangers are the protectors of the wild, but they cannot be everywhere at once. To this end, they use magic to animate plants, so that they can fight off invaders. There are some incredibly potent natural monsters, like the mighty Treant, but there are a few that aren't as imposing. There are magic-users who have seen the power of spells like Entangle, and they want to weaponize it as a life form. It's this line of thinking that to the creation of Tangela, which are creatures composed of vines. They are composed of tiny feet, a bundle of vines, two piercing white eyes, and a black ball of soil, which quickly grows more vines if its body is damaged.
If the creators of a Tangela wanted a fearsome defender of nature, they might be disappointed to find that it's small and unimposing. There are some who even find it cute and want to keep it as a pet. Don't let looks deceive you, as these creatures pack a punch. Tangela can use its vines to batter enemies into submission. It can also secrete a spore that incapacitates its foes. The durability of Tangela's body also shouldn't be underestimated, as it can quickly regrow its vines. Its only major weakness is fire, which can slow down its regeneration and burn through its defenses. Tangela might not be fearsome to behold, but they are more than capable of defending sacred groves from minor nuisances, like goblins and kobolds.