I may make the colorless, since I managed to avoid colored mana in the others of the cycle. (Those being Sphinx-Tooth Headdress, Demon Claw Carcanet, Dragonhide Pauldrons, and Angel Feather Circlet.)

I definitely like the idea of something like this, but I think it's in a weird spot at the moment. Is it supposed to be enabling fancy infinite combos, or acting like a pseudo-hexproof, or both? Would it make sense to go for a cheaper cost, a cheaper mana repayment, and some other ability so it's not completely useless until you play another spell?

Putting this effect on an equipment is a very interesting idea because it means you can combine the free spell ability with any creature you like, which opens more possibilities than spellwild ouphe, etc.

However, while I love this version for the tantalising feeling that if I can find a spell that targets a creature and draws one or two cards, I may well be able to go infinite, I feel it may be more fun if this could come down on turn 2 or 3 and enable a steady stream of smaller effects over the course of the game, with maybe a big infinite effect as a back-up plan?

Well, now it has something to do with the mana it makes. I'm not really sure where I want to go with this card. I just thought it was an interesting effect, to be honest.

You know, looks kinda funny.