Aeon, Time's Herald

When Aeon, Time's Herald enters the battlefield, shuffle target opponent's permanents into two piles.
Tap all permanents in one pile, and phase out all permanents in the other.
When permanents phase in, they deal 2 damage to their controller.
"Did you really think I would let you mere mortals enter my domain without any sort of cost?" - Aeon to Jesse McAllister