We've seen heavy sales volume on packs the last few days, so I decided to take a look at the card values to see if The Flippening had arrived.

And sure enough, it has.

At this point, if you get any kind of discount on potions at all, your expected value from buying a 575 promo deal of packs is greater than the cost of those packs. So you can buy packs, sell the cards, use the money to buy even more packs, and repeat.

That's the flippening.

How long it will remain in effect is anyone's guess.