Muzammil, The Useless Weirdo

Hexproof from its controller
When Muzammil, The Useless Weirdo enters
the battlefield exile all creatures you control.
At the beginning of your upkeep destroy all
creature you control, deal 5 damage to this
creature's controller and his opponent gains 5
life.
He made all of friends suffer from emotional damage
and brain trauma. His stupidity and weirdness
made all of his new teammates suffer from
many forms of PTSD.