Houndour

Haste
Level up {b/r}{b/r}: Put a level counter on this.
(Level up only as a sorcery.)
Level 1-3 — [5/2] Haste, First Strike
Level 4+ — [7/3] Haste, First Strike
Whenever Houndour attacks, target opponent discards a card
Smog
{b/r}{b/r}, {t}: Creatures you control gain protection
from white until end of turn