Deceiver of Form 
Creature — Eldrazi
$0.46 #10245 0.37 10.7 years
( represents colorless mana.)
represents colorless mana.)At the beginning of combat on your turn, reveal the top card of your library. If a creature card is revealed this way, you may have creatures you control other than this creature become copies of that card until end of turn. You may put that card on the bottom of your library.
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Cryptoplasm80%
$0.64↑#12938↓0.4415.7 years↑
"At the beginning of your upkeep, you may have this creature become a copy of another target creature, except it has this ability."
Vesuvan Drifter77%
$0.29↓#105580.07↓3.4 years↓
"At the beginning of each combat, you may reveal the top card of your library. If you reveal a creature card this way, this creature becomes a copy of that card until end of turn, except it has flying."
Deepfathom Echo74%
$0.26↓#99530.12↓2.9 years↓
"At the beginning of combat on your turn, this creature explores. Then you may have it become a copy of another creature you control until end of turn."
Irma, Part-Time Mutant73%
$4.09↑#3406↑0.450.6 years↓
"At the beginning of combat on your turn, this card becomes a copy of up to one other target creature you control, except her name is this card and she has this ability. Then put a +1/+1 counter on her."
Tilonalli's Skinshifter72%
$0.21↓#23689↓0.17↓9.1 years↓
"Whenever this creature attacks, it becomes a copy of another target nonlegendary attacking creature until end of turn."
Cytoshape71%
$0.48↑#26622↓0.13↓20.5 years↑
"Choose a nonlegendary creature on the battlefield. Target creature becomes a copy of that creature until end of turn."
Write into Being71%
$0.18↓#20572↓0.06↓11.8 years↑
"Look at the top two cards of your library. Manifest one of those cards, then put the other on the top or bottom of your library."
Cemetery Puca70%
$2.76↑#19936↓0.07↓18.5 years↑
"Whenever a creature dies, you may pay 
. If you do, this creature becomes a copy of that creature, except it has this ability."
. If you do, this creature becomes a copy of that creature, except it has this ability."
Silent Hallcreeper70%
$1.19↑#1442↑0.272.1 years↓
"• This creature becomes a copy of another target creature you control."
Renegade Doppelganger70%
$0.55↑#19320↓0.11↓16.5 years↑
"Whenever another creature you control enters, you may have this creature become a copy of that creature until end of turn."
Mirror of the Forebears70%
$1.81↑#106120.12↓9.2 years↓
": Until end of turn, this artifact becomes a copy of target creature you control of the chosen type, except it's an artifact in addition to its other types."
: Until end of turn, this artifact becomes a copy of target creature you control of the chosen type, except it's an artifact in addition to its other types."
Nascent Metamorph70%
$0.29↓#17638↓0.14↓6.5 years↓
"Whenever this creature attacks or blocks, target opponent reveals cards from the top of their library until they reveal a creature card. This creature becomes a copy of that card until end of turn. Then that player puts all cards revealed this way on the bottom of their library in a random order."
Shapeshifter's Marrow70%
$0.51↑#26125↓0.07↓19.5 years↑
"At the beginning of each opponent's upkeep, that player reveals the top card of their library. If it's a creature card, the player puts the card into their graveyard and this enchantment becomes a copy of that card."
Artisan of Forms70%
$0.20↓#17065↓0.05↓13.1 years↑
"Whenever you cast a spell that targets this creature, you may have this creature become a copy of target creature, except it has this ability."