Pupitar

Its body is as hard as bedrock. By venting pressurized gas, it can launch itself like a rocket.

Pressurized Gas: Does 10 damage to each of your opponent's Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)

Rocket Tackle (50): Pupitar does 10 damage to itself. Flip a coin. If heads, prevent all damage done to Pupitar by attacks during your opponent's next turn.