You may have this creature enter as a copy of any creature on the battlefield, except it has "At the beginning of your upkeep, if this creature isn't a token, create a token that's a copy of this creature."
Colour identity Simic
In short
Progenitor Mimic has 4 listed printings; the most valuable is the printing from 2XM at US$1.58 on TCGplayer's market price. Prices below are the cheapest in-stock listing in the United States.
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