Phrexyian Beserker

Trample, Nemesis 2 (When this creature enters the battlefied, choose two target creatures an opponent controls as its nemesis. While this creature and at least one of the other decalred creatures are on the field they cannot block creatures other than their nemesis.
Phrexyian Beserker must attack each turn if able.
Whenever Phrexyian Beserker deals combat damage to a player, target creature gains Defender.