Whirlipede

Poison Point

If the Pokémon is attacked by a contact move, it has a 30% chance of causing Poison to the attacker.

Swarm

For every 3% of life the pokemon loses, it increases the damage of Bug-type attacks by 2%.

Speed BoostHidden

When the pokemon defeats another pokemon, it has a 10% chance of increasing the speed stage by 1, in PVP the chance is 100%.