Serum Powder [Iconic Masters] BT15-007 where X is the greatest

where X is the greatest number of creatures you control that have a creature type in common

Set: Battle for Zendikar Prerelease Promos Type: Legendary Creature — Kor Ally Rarity: Rare Cost: {2}{R}{W} Haste

Set: Limited Edition Alpha Type: Artifact Rarity: Rare Cost: {0} {T}

Under the master's eye

create that many 1/1 green Saproling creature tokens

Serum Powder [Iconic Masters] BT15-007 where X is the greatestSet: Iconic Masters 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.)