C Mining

Search your deck for an Item card, reveal it, and put it into your hand. Then, shuffle your deck. If that card is a Pokémon Tool card, instead of putting it into your hand, you may attach it to 1 of your Pokémon that doesn't already have a Pokémon Tool attached to it.

MC Bite Off 20+

If your opponent's Active Pokémon is a Pokémon-GX or a Pokémon-EX, this attack does 30 more damage (before applying Weakness and Resistance).