Giovanni's Machoke is a Uncommon Pokémon — Stage 1 card from Pokémon TCG (Gym Challenge, GYM2).
Uncommon
Gym Challenge (GYM2)
Card Text
Risky Attack: Flip a coin. If tails, this attack does no damage to the Defending Pokémon and Giovanni's Machoke does 100 damage to itself.
Headlock: Flip a coin. If heads, this attack does 20 damage plus 20 more damage and the Defending Pokémon is now Paralyzed. If tails, this attack does 20 damage.