Whenever a permanent you control is dealt damage, Howlpack Avenger deals that much damage to any target.
{1}{R}: Howlpack Avenger gets +2/+0 until end of turn.
Nightbound (If a player casts at least two spells during their own turn, it becomes day next turn.)
If the damage causes this creature to die before the triggered ability resolves, use last known information to determine whether or not this creature had abilities such as deathtouch and lifelink. If it did, those abilities will apply to the damage
The triggered ability on each face still works even if that damage causes this creature to die.