Talk:Magic Duel/@comment-5513888-20121202194751/@comment-5263503-20121202204857

Trixie could only do the age spell because she had the amulet. If she didn't have it, she wouldn't be able to do that spell. And you probably can cast a spell (with the amulet)  that makes a pony play 10 instruments, but it wasn't necessary as Pinkie could already do that.