Six Six is a powerful mill and recursion tool for graveyard decks, but you dont even need to care about the graveyard to run this since its a self-fueling engine
Tertiary status means that it's acceptable to occasionally give green haste but very rarely and only where flavor strongly fits
So, just as its fun to lower your opponents life, its fun to raise your own
Mulan Free Spirit is your choice against big character decks, Alice Accidentally Adrift for item decks, and Cinderella Gentle and Kind as more of an all-rounder
Illuminor Szeras Its possible to make some silly amounts of black mana with Illuminor Szeras, but you only ever get back the same amount of mana you put in unless you make your creatures cost less
That's where the inspiration for MTG's new Suplex card comes from, as it takes the iconic moment from Final Fantasy 6 where you can literally suplex a train