Sudowoodo (Hidden Fates Shiny Vault SV20/SV94)

Abilities

Your opponent can't have more than 4 Benched Pokémon. If they have 5 or more Benched Pokémon, they discard Benched Pokémon until they have 4 Pokémon on the Bench. If more than one effect changes the number of Benched Pokémon allowed, use the smaller number.

Attacks

To avoid attack, it mimics a tree. It will run off if splashed with water, which it hates.