Whenever enchanted creature deals combat damage to a player, double its controller’s life total.
My opponent then enchants the Cockatrice with Control Magic. Next turn, they attack with it.
Who's the controller of the Celestial Mantle at this stage? Who will benefit from Celestial Mantle's ability to double a player's life total?
- The player who put the Aura onto the creature, or
- The player controlling the creature?