Mercurial Pretender
{4}{U}
Creature -- Shapeshifter
0/0
You may have ~this~ enter as a copy of a creature you control, except it has "{2}{U}{U}: Return ~this~ to its owner's hand."
Mirror Image
{2}{U}
Creature -- Shapeshifter
0/0
You may have ~this~ enter as a copy of a creature you control.