God that's a lot of janky text...

Essentially an oblivion ring callback to the FORCE OF cycle. However if the opponent removes the enchantment, you get your card back.. Was hoping for elegant wording since both cards are in exile but one came from hand and the other from the field? Unless I just said all the cards went to owners hands?

Wait, how do you pay a cost until something leaves the battlefield?

Ooooh, I see how it's meant to work. Huh. silly templating basis making easy concepts hard to express.

Hmm. You could keywordify the alt cost? Does that help?

Flash
Exile target non-land permanent until ~ dies.
Discast (you may exile a card from your hand until ~ dies instead of paying its mana cost)

No, that's no better. Ugh. On the other hand; it's kiiiinda a lot too good as it is. Even an outright:
You may exile a card from your hand until ~ dies instead of paying its mana cost is kinda good.

The "FORCE OF cycle"? Supposedly consisting of Force of Nature and Force of Will?

One important note about free spells: They usually check for criteria that tie them to decks of the appropriate color e. g. causing you to exile cards of the appropriate color or basic land type from your hand or checking whether you control such permanents.

This just asks you to exile a card, so there is no such check.

> You may exile a white card from your hand until [the permanent ~ becomes] leaves the battlefield rather than pay ~'s mana cost.
When ~ enters the battlefield, exile target nonland permanent until ~ leaves the battlefield.

This wording is cleaner. The cost is unusually mild, but you only get your investment back if the enchantment is undone, so it's not unthinkable - maybe a matter of balancing e. g. going for something like Journey to Nowhere over Oblivion Ring.