Oblivion's Choice

Target player separates any three permanents they control into two piles. Neither of the piles can be empty.
Starting with the person to your right, each player except you votes for a pile. If the vote is tied when it reaches you, you may also vote. The pile that received the most votes is put into its owner's graveyard.
It only took Jace a moment to realize how unprepared he was for the battle, but an eternity to fix that mistake.