Board Thread:Character Discussion/@comment-34924658-20161007024033/@comment-25375217-20170417204006

Killian Jones wrote: Or Perhaps Fendrake was more magical than he let on, and he made it so the contract would still be valid once Rumplestiltskin became Mr. Gold in another life :D Which would explain why Rumple began to use it in his contracts too. Hmmm, also an interesting theory. Fendrake doesn't age (though that could be blamed on particularly strong healing potions), so who knows?

I still like my theory of Rumple taking it for his relationship with Cora. Maybe once he came up with the idea, that's when he figured out what Fendrake was doing with his original contract?