Graveborn Herald

{b}{b}: Put Graveborn Herlad onto the battlefield from the command zone.

At the beginning of your upkeep, if Graveborn Herald is in your graveyard, create a 2/2 black Zombie creature token with decayed, plus one additional for every five cards in your graveyard.
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Even in death, he commands. From the depths of the grave, his army rises—silent, relentless, and eternal.