Mimic Vat
From The Lost Caverns of Ixalan Commander set
Mimic Vat
Artifact
Imprint — Whenever a nontoken creature dies, you may exile that card. If you do, return each other card exiled with this artifact to its owner's graveyard.
,
: Create a token that's a copy of a card exiled with this artifact. It gains haste. Exile it at the beginning of the next end step.