You may have Glasspool Mimic enter the battlefield as a copy of a creature you control, except it's a Shapeshifter Rogue in addition to its other types.
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Glasspool Shore
Glasspool Shore enters the battlefield tapped.
T: Add U.
Rarity:R
#:60
Card Type:Creature — Shapeshifter Rogue // Land
P / T:0 / 0
Flavor:"When I touched the Glasspool, I tasted infinite possibility."
—Ashen Wal, Akoum Expeditionary House
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"Past and possibility come together in the vastness of infinite reflection."
—Ashen Wal, Akoum Expeditionary House
Casting Cost:
2U
Artist:Johan Grenier