Enchantment — Aura, W (1)
Common
Enchant creature
Enchanted creature's activated abilities can't be activated.
{1}{W}: Attach Detainment Spell to target creature.
Bind the mind rather than the wrist, and you stop the intent to harm before it starts.
Illus. Darrell Riche

9/25/2006: Detainment Spell prevents mana abilities of the enchanted creature from being activated.
9/25/2006: Morph isn't an activated ability, so Detainment Spell doesn't prevent face-down creatures from being able to turn face up.
9/25/2006: Responding to a creature's activated ability being activated by moving Detainment Spell onto that creature won't affect the ability that was just activated.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Classic (MTGO)
Legal in Commander
Legal in Modern