Vesuvan Shapeshifter
{3}{U}{U}
Creature -- Shapeshifter
0/0
As ~this~ enters or is turned face up, you may choose another creature on the battlefield. If you do, until ~this~ is turned face down, it becomes a copy of that creature, except it has "At the beginning of your upkeep, you may turn ~this~ face down."
Morph {1}{U}