Veil of Wackiness

"Peekaboo! Shadows play tricks, even on the most
serious of planeswalkers."
At the beginning of each opponent's upkeep,
that player mills three cards and must perform a
wacky dance. If any of the cards they milled were
creature cards, you may mimic their dance. If
you do, create a 2/2 black Zombie creature token
tapped. You get {e} for each instant, interrupt,
and interwhatevers milled this way.