Display of Beauty

Gain control of up to X target creatures with converted mana cost Xor less and put an entrancement counter on them. If a creature with
an entrancement counter on it attacks or blocks,
return it to its owner's control at the beginning of
the next end step. If X is 4 or more, exile up to 2 creatures you control, then return them to the battlefield under your control.
No rest for the gullible.