Warden Dath'remar

First Strike, Reach, Ward 3, Nijutsu {3}{w/b}{g}
When Warden Dath'remar enters the battlefield exile target creature cards from the battlefield equal to the unique mana you spent to cast him. Each mana not spent to cast him gives him a +1/+1 counter. Summon a 2/2 blue owl with haste and flying