Colfenor's Urn
Artifact
Whenever a creature with toughness 4 or greater is put into your graveyard from the battlefield, you may exile it. At the beginning of the end step, if three or more cards have been exiled with this artifact, sacrifice it. If you do, return those cards to the battlefield under their owner's control.
rare · #315 · tdc
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Rank supplied by Scryfall from EDHREC; it may lag behind EDHREC. Deck counts and synergy percentages are not included.