pokemon card combusken Cards & Artwork Power Keepers Type Combusken (25/106) - Emerald Reverse

As a sorcery, you may pay the mana cost of a locked door to unlock it.) If creatures you control deal combat damage to multiple players at the same time, Locker Room's ability will trigger once for each player dealt combat damage this way

But replacing Yawgmoth with these cards in the command zone instantly lowers the power and amps up the goofiness of your black sac deck, so they might be nice to have on hand in case you walk into the LGS and everyone is actually shuffling up precons

Only when casting the copy later on in the ability will magecraft trigger

After all, what are you paying for when you buy an Underground Sea

This ensures that whatever direction you go with your cards, you have the tokens for it