Mimic Vat {3}
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.
{3}, {T}: 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.
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Hofri Ghostforge 87%
$0.22#7032
"Whenever another nontoken creature you control dies, exile it. If you do, create a token that's a copy of that creature, except it's a Spirit in addition to its other types and it has "When this token leaves the battlefield, return the exiled card to its owner's graveyard.""
Cavalier of Thorns 85%
$0.24#5414
"When this creature dies, you may exile it. If you do, put another target card from your graveyard on top of your library."
Paramecia Coloniex 85%
$0.17#19355
"When this creature dies, you may exile it. When you do, put target creature card from your graveyard on top of your library."
Myrkul, Lord of Bones 84%
$0.25#9822
"Whenever another nontoken creature you control dies, you may exile it. If you do, create a token that's a copy of that card, except it's an enchantment and loses all other card types."
Nightmare Shepherd 83%
$0.34#4176
"Whenever another nontoken creature you control dies, you may exile it. If you do, create a token that's a copy of that creature, except it's 1/1 and it's a Nightmare in addition to its other types."
Rundvelt Hordemaster 83%
$2.03#4608
"Whenever this creature or another Goblin you control dies, exile the top card of your library. If it's a Goblin creature card, you may cast that card until the end of your next turn."
Lamplight Phoenix 83%
$0.15#18302
"When this creature dies, you may exile it and collect evidence 4. If you do, return this card to the battlefield tapped."
Prototype Portal 83%
$0.78#8844
"{X}, {T}: Create a token that's a copy of the exiled card. X is the mana value of that card."
Soul Foundry 83%
$0.59#12027
"{X}, {T}: Create a token that's a copy of the exiled card. X is the mana value of that card."
Arena Rector 82%
$9.81#9100
"When this creature dies, you may exile it. If you do, search your library for a planeswalker card, put it onto the battlefield, then shuffle."
Academy Rector 82%
$78.64#5607
"When this creature dies, you may exile it. If you do, search your library for an enchantment card, put that card onto the battlefield, then shuffle."
Unscythe, Killer of Kings 82%
$1.83#17974
"Whenever a creature dealt damage by equipped creature this turn dies, you may exile that card. If you do, create a 2/2 black Zombie creature token."
Sizzling Changeling 82%
$0.23#16766
"When this creature dies, exile the top card of your library. Until the end of your next turn, you may play that card."
Gamekeeper 81%
$0.23#13513
"When this creature dies, you may exile it. If you do, reveal cards from the top of your library until you reveal a creature card. Put that card onto the battlefield and put all other cards revealed this way into your graveyard."
Rooting Kavu 81%
$0.23#26695
"When this creature dies, you may exile it. If you do, shuffle all creature cards from your graveyard into your library."
Chaos Shrine's Black Crystal 81%
$4.53#13337
"Whenever a nontoken creature you control dies, exile it."
Caller of the Untamed 81%
$0.21#31038
"{X}, {T}: Create a token that's a copy of a card you exiled with cards named this card. X is the mana value of that card."
Barishi 80%
$0.19#25073
"When this creature dies, exile it, then shuffle all creature cards from your graveyard into your library."