Tormold, Abysmal Dawn

All Nightmare creatures have +1/+1 and fear.
Whenever Tormold deals combat damage to a
player, search a graveyard for a creature card and
exile it with a night counter on it.
You may cast cards in exile with night counters
on them, and you may spend mana as though it
were many of any color to cast these spells. They
are Nightmares in addition to their other types.