Ringing Strike Mastery TDM/53

Set: Tarkir: Dragonstorm
Collector Code: TDM/53
Name: Ringing Strike Mastery
Type: Enchantment — Aura
Oracle text: Enchant creature When this Aura enters, tap enchanted creature. Enchanted creature doesn't untap during its controller's untap step. Enchanted creature has "{5}: Untap this creature."
Rarity: Common