Controlled Instincts

Enchantment - Aura, U (1)
Enchant red or green creature
Enchanted creature doesn't untap during its controller's untap step.
Togk Manytooth struggled helplessly as the kathari circled above him. For a warrior, immobilization is a fate worse than death.
Illus. Ralph Horsley

Gatherer Card Rulings [Nov 2009]

• 2/1/2009: Controlled Instincts may target and may enchant an untapped creature.
• 2/1/2009: Controlled Instincts can enchant only a creature that's red or green. If at any time the enchanted creature is neither red nor green, Controlled Instincts is put into its owner's graveyard as a state-based action.

Format Legality	Legal in Vintage, Legacy, Extended, Standard
Printings (1/9)	Conflux (Uncommon)