Yeah, black lotus is a card they've yet to make a playable, yet not completely broken variant of, of the ones I know of, Petal, Lions Eye Diamond and Gilded Lotus, two of them have been banned, both of which are still easy to exploit. Moxen they've nailed down, turns out, it's easier than you think to make mana rocks
balanced and playable
Immensely dislike how they set up DoTP, when games turn into hoping your opponent draws nothing but lands (or none at all), that isn't fun.