Esper EDH Trick 6

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.) : Put target artifact or creature card with mana value X from an opponent's graveyard onto the battlefield tapped under your control. Then that player mills X cards.

Destroy all creatures, then search target opponent's library for up to three creature cards and put them into their graveyard. Then that player shuffles.