Curse Creature

Flash, haste, first strike
When Curse Creature enters the battlefield it is
an aura, Attatch it to a creature an opponent
controls, enchanted creature has -1/-1.
If Curse Creature is an aura and not attached you
may Attach it to a creature an opponent controls,
if you dont, it is an X/X Horror enchantment
creature where X is the number of curse counters
on it; whenever you Attach Curse Creature put a
curse counter on it.