Enchantment - Aura, 2U (3) Enchant creature Enchanted creature doesn't untap during its controller's untap step. Enchanted creature has "{1}, Put a -1/-1 counter on this creature: Untap this creature."
Illus. Ron Brown
5/1/2008: Sinking Feeling grants the untap ability to the creature it's enchanting. Only the creature's controller can activate that ability, not Sinking Feeling's controller.