Instant, 1U (2) Counter target creature spell. Some wizards compete not to summon the most interesting creatures, but to create the most interesting aftereffects when a summons goes awry.
Illus. Jon Foster
10/1/2009: 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.