Honestly this mechanic seems really bad. It's extremely boring, it does pretty much exactly the same thing no matter what card it's on, and it's locked into costing so it's pretty much always just going to be "costs 1 less if it's foretold". It adds pretty much zero interesting interaction to the gameplay, too.

The only really interesting thing to do with the mechanic is going to be forced stuff, like cards that specifically synergize with foretell, or cards that have different effects when you cast them for their foretell costs, but it's pretty much never going to be the actual underlying mechanic doing the interesting thing. Maybe we'll get some cutesy card that has a foretell cost but not a casting cost, idk.

It's morph but missing the thing that made morph interesting, namely the fact that they can be turned face up at any time and become a completely different creature. There's hidden information here, but it's not really hidden information that matters, because you're never going to attack into or block or cast a spell on a foretold card.

There is one way the mechanic could be saved "On a later turn, play it for its foretell cost" is reminder text, it doesn't give us the full RULES text. If this means ANY later turn, effectively granting all foretold cards Flash, it could be pretty nice for "trap cards"

Honestly I think the biggest problem with the mechanic is that it has a set cost to Foretell, which means that unlike Suspend where you could tweak the number of turns and the suspend cost, all that can be tweaked here is the amount of discount Foretell provides. Which should, pretty much always, just be .

I think it can be more interesting than that. Especially on instants and permanents with flash.