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
Damage: 30
Before doing damage, you may switch your opponent's Active Pokémon with 1 of his or her Benched Pokémon.
Push Over
Damage: 60
Does 60 damage plus 10 more damage for each Fighting Energy attached to Swampert.