Equilibrium
Enchantment
Whenever you cast a creature spell, you may pay . If you do, return target creature to its owner's hand.
Seek balance in all things—as long as the scales are weighted in your favor. —Vodalian saying
Don Hazeltine
Mystery Booster 2 (MB2)
• #162Rulings
The ability is put on the stack immediately after you cast a creature spell, which means the creature that spell will become won't be a legal target.
(wotc • 2008-08-01)
The ability will still resolve even if the spell that triggered it gets countered.
(wotc • 2008-08-01)
A "creature spell" is any spell with the type Creature, even if it has other types such as Artifact or Enchantment. Older cards of type Summon are also Creature spells.
(wotc • 2008-04-01)
Rulings
The ability is put on the stack immediately after you cast a creature spell, which means the creature that spell will become won't be a legal target.
(wotc • 2008-08-01)
The ability will still resolve even if the spell that triggered it gets countered.
(wotc • 2008-08-01)
A "creature spell" is any spell with the type Creature, even if it has other types such as Artifact or Enchantment. Older cards of type Summon are also Creature spells.
(wotc • 2008-04-01)