Glasspool Mimic // Glasspool Shore
Creature — Shapeshifter Rogue // Land
You may have this creature enter as a copy of a creature you control, except it's a Shapeshifter Rogue in addition to its other types.
This land enters tapped.
{T}: Add {U}.
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Cards that do something similar expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Visage Bandit 100%
$0.22#7472
"You may have this creature enter as a copy of a creature you control, except it's a Shapeshifter Rogue in addition to its other types."
Mocking Doppelganger 89%
$4.33#5325
"You may have this creature enter as a copy of a creature an opponent controls, except it has "Other creatures with the same name as this creature are goaded.""
Body Double 88%
$0.31#6056
"You may have this creature enter as a copy of any creature card in a graveyard."
Sakashima's Protege 87%
$0.45#5882
"You may have this creature enter as a copy of any permanent that entered this turn."
Malleable Impostor 85%
$8.10#4411
"You may have this creature enter as a copy of a creature an opponent controls, except it's a Faerie Shapeshifter in addition to its other types and it has flying."
Renegade Doppelganger 84%
$0.50#19450
"Whenever another creature you control enters, you may have this creature become a copy of that creature until end of turn."
Activated Sleeper 84%
$1.54#8499
"You may have this creature enter as a copy of any creature card in a graveyard that was put there from the battlefield this turn, except it's a Phyrexian in addition to its other types."
Waxen Shapethief 84%
$0.38#6388
"You may have this creature enter as a copy of an artifact or creature you control."
Hulking Metamorph 83%
$0.18#7907
"You may have this creature enter as a copy of an artifact or creature you control, except it's an artifact creature in addition to its other types, and its power and toughness are equal to this creature's power and toughness."
Spark Double 83%
$14.28#401
"You may have this creature enter as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary."
Chameleon, Master of Disguise 82%
#2202
"You may have this card enter as a copy of a creature you control, except his name is this card."
Phyrexian Metamorph 81%
$2.32#306
"You may have this creature enter as a copy of any artifact or creature on the battlefield, except it's an artifact in addition to its other types."
Omni-Changeling 81%
$0.31#6806
"You may have this creature enter as a copy of any creature on the battlefield, except it has changeling."
Undercover Operative 81%
$0.37#5367
"You may have this creature enter as a copy of any creature on the battlefield, except it enters with a shield counter on it if you control that creature."
Vesuvan Doppelganger 81%
#16958
"You may have this creature enter as a copy of any creature on the battlefield, except it doesn't copy that creature's color and it has "At the beginning of your upkeep, you may have this creature become a copy of target creature, except it doesn't copy that creature's color and it has this ability.""
Vizier of Many Faces 81%
$0.30#4322
"You may have this creature enter as a copy of any creature on the battlefield, except if this creature was embalmed, the token has no mana cost, it's white, and it's a Zombie in addition to its other types."
Preston, the Vanisher 80%
$33.07#3792
"Whenever another nontoken creature you control enters, if it wasn't cast, create a token that's a copy of that creature, except it's a 0/1 white Illusion."
Invasion of Amonkhet // Lazotep Convert 80%
$0.22#8091
"You may have this creature enter as a copy of any creature card in a graveyard, except it's a 4/4 black Zombie in addition to its other colors and types."