Does Wo Chien evolve?

No. Wo Chien has no evolutions.

What type is Wo Chien?

Wo Chien is a dual Dark/Grass type Pokémon.

Wo Chien is Dark/Grass. It takes 4× from Bug and 2× from Fire, Ice, Fighting, Poison, Flying and Fairy.

No. 1001 · Gen 9

Calm: Raises its best defense and drops Attack, which it won't use.

Hit WO CHIEN with Bug for 4× damage. Fire, Ice, Fighting, Poison, Flying and Fairy also deal 2×.

4×Hits hardest

2×Super effective

½×Not very effective

0×No effect

In Pokémon GO: Bug deals 2.56× instead of 4×. GO chart

CalmRaises its best defense and drops Attack, which it won't use.

Worked out from base stats. Your team may need something else.

Defeating Wo Chien gives 3 Sp. Def EVs.

The strongest attacking move it can learn in each type, across all games. Not every game has every move. Same-type moves get a 1.5× bonus.

Type	Move	Kind	Power
Normal	Hyper Beam	Special	150
Grass	Leaf Stormsame type	Special	130
Dark	Foul Playsame type	Physical	95
Bug	Pollen Puff	Special	90
Psychic	Zen Headbutt	Physical	80
Fighting	Body Press	Physical	80
Ghost	Hex	Special	65
Ground	Mud Shot	Special	55

Regular Pokémon whose same-type moves hit it hard and who take little from its same-type moves. Picked from types and base stats only, not movesets.