Setting Sun (SGX3-ENS14) - Speed Duel GX: Duelists of Shadows 1st Edition

Once per turn, during your Main Phase, if you control a monster whose ATK was ? in the Deck, you can banish 1 card from your hand, then add 1 monster from your Deck to your hand with ? ATK, but with a different name than the cards you control. "Helios" monsters you control cannot be banished.