Dire Mimic {2}
Artifact — Treasure
Flash
{T}, Sacrifice this artifact: Add one mana of any color.
{3}: This artifact becomes a Shapeshifter artifact creature with base power and toughness 5/5 until end of turn.
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Cards that do something similar expected a card that isn't here?
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Mimic 100%
$0.17#18529
"{T}, Sacrifice this artifact: Add one mana of any color."
+1 more matching line
Chromatic Sphere 90%
$0.37#5167
"{1}, {T}, Sacrifice this artifact: Add one mana of any color. Draw a card."
Barbed Sextant 90%
#18472
"{1}, {T}, Sacrifice this artifact: Add one mana of any color. Draw a card at the beginning of the next turn's upkeep."
Glittering Stockpile 87%
$0.40#2228
"{T}, Sacrifice this artifact: Add X mana of any one color, where X is the number of stash counters on this artifact."
Lotus Blossom 85%
$0.40#11571
"{T}, Sacrifice this artifact: Add X mana of any one color, where X is the number of petal counters on this artifact."
Implements of Sacrifice 81%
$0.61#27683
"{1}, {T}, Sacrifice this artifact: Add two mana of any one color."
Astrolabe 80%
#25902
"{1}, {T}, Sacrifice this artifact: Add two mana of any one color. Draw a card at the beginning of the next turn's upkeep."