Vesuvan Doppelganger
Creature - Shapeshifter
(CMC 5)
You may have Vesuvan Doppelganger enter the battlefield 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."
- [LEB] Limited Edition Beta #88 (R)