Magmortar

When you attach a Fire Energy card from your hand to Magmortar, remove 2 damage counters from Magmortar.

Flame Blast

20x

Does 20 damage times the number of Fire Energy attached to Magmortar.

Fireball Bazooka

40

Does 20 damage to 2 of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)