Enchantment — Aura, 2U (3)
Common
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.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Classic (MTGO)
Legal in Commander
Legal in Modern