Though not new to Magic: The Gathering (you can check out our guide on how to use double-sided cards here), double-sided or double-faced cards have not been featured in a Modern Horizons set before
I feel like its teaching me the skills I need to learn just by opening up packs of cards and sorting them out, which is not something Im used to with other card games
13: Mana Drain Its pretty amazing that Mana Drain, one of the most broken cards ever doesnt crack the top ten, but this is a high-powered eternal format, which means a vast majority of cards people play are very cheap
For sustained mana, Cabal Coffers works best in mono-black, though it can be used in other color combinations thanks to Urborg, Tomb of Yawgmoth, though those decks make this a weak half of a 2-card combo
Yes, it costs 6 mana, but most good sweepers are in that mana value range, and this cards effects are probably the best you can get for it