Singing Bell Strike is a common Enchantment — Aura card from The List (PLST), collector number KTK-55. Current market price: $0.31, TCGplayer market prices via Scryfall.
Enchant creature When this Aura enters, tap enchanted creature. Enchanted creature doesn't untap during its controller's untap step. Enchanted creature has "{6}: Untap this creature."