Serum Powder [Darksteel] Arena League 2000 You can only use each

You can only use each effect of "True Draco Apocalypse" once per turn

Set: Photon Shockwave Card type: Xyz/Effect Monster Rarity: Secret Rare Attack: 2300 Defense: 1700 2 Level 4 Dinosaur-Type monsters When an Effect Monster's effect activates: You can detach 1 Xyz Material from this card

Set: Amonkhet Invocations Type: Instant Rarity: Mythic Cost: {1}{U}{U} Buyback—Discard two cards

return the second targets to the hand

• Fusion: This card can attack directly

Serum Powder [Darksteel] Arena League 2000 You can only use eachSet: Darksteel Type: Artifact Rarity: Rare Cost: {3} {T}: Add {C}. Any time you could mulligan and Serum Powder is in your hand, you may exile all the cards from your hand, then draw that many cards. (You can do this in addition to taking mulligans.)