Protect/Serve

/ /    Instant

You may have Progenitor Mimic enter the battlefield 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."
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Target creature gets -6/-0 until end of turn.
Fuse (You may cast one or both halves of this card from your hand.)
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Target creature gets +2/+4 until end of turn.
Fuse (You may cast one or both halves of this card from your hand.)

Illustrated by Ryan Barger