Golem

It detonates its own body. The power from that explosion can propel it up steep mountain paths with amazing speed.

Ability — Desperate Blast: If this Pokémon is in the Active Spot and is Knocked Out by damage from an attack from your opponent's Pokémon, put 10 damage counters on the Attacking Pokémon.

Double-Edge (160): This Pokémon also does 30 damage to itself.