Rampardos

Poké-Body: Iron Skull — Rampardos's attack's damage isn't affected by Resistance, Poké-Powers, Poké-Bodies, or any other effects on the Defending Pokémon. | Head Smash (80): If the Defending Pokémon would be Knocked Out by this attack, Rampardos does 40 damage to itself. | Mold Breaker (40): Any damage done to Rampardos by attacks is reduced by 20 (after applying Weakness and Resistance) until the end of your next turn.