Pokémon ex rule: When your Pokémon ex is Knocked Out, your opponent takes 2 Prize cards.
Poison Resistance
Steelix ex can't be Poisoned.
Metal Charge
Damage: 70
Put 1 damage counter on Steelix ex.
Mudslide
Damage: 100
Discard 2 Energy attached to Steelix ex and choose 1 of your opponent's Pokémon. This attack does 100 damage to that Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)