Sovereign Okinec Ahau Art Card [The Lost Caverns of Ixalan Art Series] MON010 where X is the greatest

where X is the greatest power among other creatures you control

Set: Commander 2011 Type: Instant Rarity: Mythic Cost: {X}{R}{R} Multikicker {1} (You may pay an additional {1} any number of times as you cast this spell

Set: Commander Masters Type: Instant Rarity: Rare Cost: {5}{U}{U} You may exile two blue cards from your hand rather than pay this spell's mana cost

but they already knew the pains of death and joys of birth

Whenever you cast an artifact spell with mana value 6 or greater

Sovereign Okinec Ahau Art Card [The Lost Caverns of Ixalan Art Series] MON010 where X is the greatestSet: The Lost Caverns of Ixalan Art Series Rarity: Common