No rush unless you spot a good deal
Predict the future with one of Kaldheims intriguing mechanics, Foretell
On the other hand, seeing effects go from common to uncommon (like Doom Blade) is much more controversial, and while almost unheard of, having effects go from common to rare feels horrible because players end up thinking, "Only a few sets ago, I opened this card as a common, and now it's eating up the rare slot where I'm supposed to get an exciting / powerful / playable card?" This psychological feel-bad sums up the biggest problem with the aftermath cards: they simply aren't exciting because nearly all of them feel like commons that you'll open in your rare slot
You have to attack, after all, giving your opponent a chance to trade in combat
Apparently this is a joke, because at the time of Unglued 's printing, all the other colours had tutor cards, and not red
Altar of Dementia (4.440) Mill win condition based on you having big critters on the board