Heres another new all-star of the archetype coming in strong
You can really tear up a hand in Premodern if youre on the play with black by, say, turn one Dark Ritual into Cabal Therapy, then playing a two-drop creature, say, Ravenous Rats (making them discard a card), and then flashback Cabal and sac Rats, then Unmask paying the alt cost of discarding a black card
getting two for a Clue-centric deck is a great deal
Whenever Koma deals combat damage to a player, create four 3/3 blue Serpent creature tokens named Komas Coil
Land strategies are also a popular inclusion in most Cubes and almost all of them stem from the color Green
Yes, for purposes of Vile Bile a card sleeve on it is treated just like the Vile Bile card itself