Chyyrian Hound

Haste, Rend {b}{b}{b}{r}{r}{r} (You may cast Chyyrian Hound for its Rend cost if you dealt combat damage to a player with a demon or lost life this turn)
Chyyrian Hound enters the battlefield tapped unless its Rend cost was paid
If the Rend cost was paid, Chyyrian Hound deals 6 damage to target player and 2 damage
to all creatures that player controls