Gix Tempo Gix, Yawgmoth Praetor is essentially Mono Black Edric, Spymaster of Trest that has a slightly weaker card draw engine (you have to pay life) and weaker colors but instead comes with a built-in finisher, trading your individually weaker cards of 1/1 evasive creatures for actual haymakers and win conditions of your opponents' libraries
Actually, curious might not be the best word for it, but rather blatant oversight. For context, heres the original Circular Logic from Torment: And heres the newly revealed Secret Lair version: Lets pretend that were back to being a 10-year-old in the pediatricians waiting room, flipping through Highlights
DIY Storage Solutions Obviously, buying something and expecting it to work for you 100% is unlikely
If a Set Booster pack has such a card, it can be of any rarity
The downside is youre limited to cards that actually have the printed madness ability, with only a few ways to apply that ability to other cards