Mask Of The Cinder Spirit

Whenever Mask Of The Cinder Spirit enters the
battlefield under your control, you may attach it
to target creature you control as an Enchantment
Aura. Mask Of The Cinder Spirit becomes a
creature again if it's not attached to a creature.
Mask Of The Cinder Spirit and enchanted
creature have haste, spirit strike, and protection
from spells. (Whenever you gain life for the first
time each turn, this permanent deals that much
damage to any target.)