Gadrak, the Crown-Scourge {2}{R}
Legendary Creature — Dragon
Flying
Gadrak can't attack unless you control four or more artifacts.
At the beginning of your end step, create a Treasure token for each nontoken creature that died this turn. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")
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Cards that do something similar expected a card that isn't here?
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Mahadi, Emporium Master 94%
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"At the beginning of your end step, create a Treasure token for each creature that died this turn."
Sidequest: Hunt the Mark // Yiazmat, Ultimate Mark 85%
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"At the beginning of your end step, if a creature died under an opponent's control this turn, create a Treasure token. Then if you control three or more Treasures, transform this enchantment."
Overencumbered 82%
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"this card can't attack if there's another creature on the battlefield."
Relic Retriever 81%
$0.25#11335
"At the beginning of each end step, if a card left your graveyard this turn, create a Treasure token."