Cryptoplasm 
Creature — Shapeshifter
$0.64 #12938 0.44 15.7 years
At the beginning of your upkeep, you may have this creature become a copy of another target creature, except it has this ability.
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Cards similar to Cryptoplasm expected a card that isn't here?
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Artisan of Forms90%
$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."
Cephalid Facetaker90%
$4.08↑#6963↑0.22↓4.5 years↓
"At the beginning of combat on your turn, you may have this creature become a copy of another target creature until end of turn, except it's 1/4 and has "This creature can't be blocked.""
Irma, Part-Time Mutant88%
$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."
Cemetery Puca88%
$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 Hallcreeper87%
$1.19↑#1442↑0.27↓2.1 years↓
"• This creature becomes a copy of another target creature you control."
Renegade Doppelganger87%
$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."
Permeating Mass86%
$0.34↓#18412↓0.25↓10.2 years↓
"Whenever this creature deals combat damage to a creature, that creature becomes a copy of this creature."
Blade of Shared Souls86%
$0.25↓#123620.06↓3.7 years↓
"Whenever this Equipment becomes attached to a creature, for as long as this Equipment remains attached to it, you may have that creature become a copy of another target creature you control."
Tilonalli's Skinshifter86%
$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."
Protean Thaumaturge86%
$0.31↓#106410.00↓6.7 years↓
"Whenever an enchantment you control enters, you may have this creature become a copy of another target creature, except it has this ability."
Kimahri, Valiant Guardian86%
$0.21↓#6902↑0.00↓1.4 years↓
"At the beginning of combat on your turn, put a +1/+1 counter on this card and tap target creature an opponent controls. Then you may have this card become a copy of that creature, except its name is this card and it has vigilance and this ability."
Shameless Charlatan84%
$0.24↓#20900↓0.06↓4.4 years↓
"Commander creatures you own have "
: This creature becomes a copy of another target creature.""
: This creature becomes a copy of another target creature.""
Deepfathom Echo84%
$0.26↓#9953↑0.12↓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."
Mirror of the Forebears84%
$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."
Unstable Shapeshifter83%
$1.16↑#25825↓0.18↓29.0 years↑
"Whenever another creature enters, this creature becomes a copy of that creature, except it has this ability."
Taskmaster, Mercenary Mimic83%
$0.67↑#8457↑0.350.3 years↓
"At the beginning of your first main phase, until your next turn, this card becomes a copy of up to one target creature on the battlefield or creature card in a graveyard, except his name is this card and he's a legendary Human Mercenary Villain creature."
Shapesharer83%
$4.48↑#9204↑0.3619.0 years↑
": Target Shapeshifter becomes a copy of target creature until your next turn."
: Target Shapeshifter becomes a copy of target creature until your next turn."
Assimilation Aegis82%
$0.47↓#9899↑0.18↓2.5 years↓
"Whenever this Equipment becomes attached to a creature, for as long as this Equipment remains attached to it, that creature becomes a copy of a creature card exiled with this Equipment."
Volrath, the Shapestealer82%
$0.67↑#137910.22↓7.2 years↓
": Until your next turn, this card becomes a copy of target creature with a counter on it, except it's 7/5 and it has this ability."
: Until your next turn, this card becomes a copy of target creature with a counter on it, except it's 7/5 and it has this ability."
Infinite Reflection82%
$0.24↓#17784↓0.12↓14.5 years↓
"When this Aura enters attached to a creature, each other nontoken creature you control becomes a copy of that creature."