Colfenor's Urn

Condition: Near Mint
Color: Artifact
Card Text: 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.
Rarity: R
Cost: 3
Card Type: Artifact
Artist: Jim Pavelec
Name: Colfenor's Urn
Finish: Regular
Card Number: 0315 
Set Name: Tarkir: Dragonstorm Commander