Amonkhet, a new Plane for the next Block

[Lord Seth]

As Foretold is in this set, and they know it's fucking stupid and broken.

In what way? I know a few people have freaked out but it's looking more and more like another Temporal Mastery to me.

Pro-Tip, the last time they changed the rules or pre-emptively banned something even before release was Mind's Desire, which was absolutely broken in the formats it was banned in.

They change the rules plenty of times before something gets released; heck, all rules changes inherently have to occur before something gets released. I have no idea what you're on about here.

Also, Mind's Desire was banned after Scourge was released. Scourge was released in May, its banning was announced in June and became effective in July.

The dressed up the rule change in Split cards as something else, but straight up, it was because As Foretold is another card that slipped through their super-rigorous FFL testing, much like the CopyCat combo.

I'm a bit confused as to how As Foretold is particularly affected by the split card change, at least in Standard (which is all the FFL tests for). Perhaps the argument is it could've been used with Aftermath. I'm not sure how well that synergy would've worked under the old rules, but because the Aftermath part can only be cast from the graveyard, the only possible synergy I'd see was the ability to cast the more expensive Aftermath side from the lower CMC of the "normal" side via As Foretold, which isn't all that amazing of a synergy (you have to get the card into your graveyard, then get a few counters on As Foretold).

Or are you alluding to something else? I feel rather confused by your post.