Kirk, Knight of Thorns

Invade {1}{b}{r} (Sacrifice an unblocked attacker you control: Put this card onto the battlefield from your
hand or the command zone tapped and attacking.)
Menace, double strike
Bleed 2 (Players dealt combat damage by this
creature also get two bleed counters.)(A player with
ten or more bleed counters loses 10 life and removes
ten bleed counters.)