Singing Bell Strike

Oracle Text

Enchant creature

When Singing Bell Strike enters the battlefield, tap enchanted creature.

Enchanted creature doesn't untap during its controller's untap step.

Enchanted creature has "6: Untap this creature."

Card Rulings

9/20/2014 Singing Bell Strike can be cast targeting any creature, including one that’s already tapped.
9/20/2014 The activated ability that untaps the creature is granted to the enchanted creature. Only the creature’s controller can activate this ability.