Any damage done to Swampert by attacks from your opponent's Pokémon that isn't an Evolved Pokémon is reduced by 20 (after applying Weakness and Resistance).
Drag Off
Before doing damage, you may switch your opponent's Active Pokémon with 1 of his or her Benched Pokémon.
30
Push Over
Does 60 damage plus 10 more damage for each Fighting Energy attached to Swampert.