Detainment Spell
Enchantment — Aura
Enchant creature
Enchanted creature's activated abilities can't be activated.
: Attach this Aura to target creature.
Darrell Riche
Salvat 2005 (PSAL)
• #J32Rulings
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.
(wotc • 2006-09-25)
Detainment Spell prevents mana abilities of the enchanted creature from being activated.
(wotc • 2006-09-25)
Morph isn't an activated ability, so Detainment Spell doesn't prevent face-down creatures from being able to turn face up.
(wotc • 2006-09-25)
Rulings
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.
(wotc • 2006-09-25)
Detainment Spell prevents mana abilities of the enchanted creature from being activated.
(wotc • 2006-09-25)
Morph isn't an activated ability, so Detainment Spell doesn't prevent face-down creatures from being able to turn face up.
(wotc • 2006-09-25)