Gyarados

Dragon Spark

This attack does 10 damage to each of your opponent's Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)

Full Retaliation

20×

Does 20 damage times the number of damage counters on all of your Magikarp.

Pulverize

50+

If the Defending Pokémon already has at least 2 damage counters on it, this attack does 50 damage plus 50 more damage.