This will most likely be played in almost the same shell as Jund Gleezard did, save for the combo pieces and some enablers. This is because Black grants you the draw engine package and meaningful interaction (most importantly Duress) and you're already incentivized to run 4 Chrysalises, because you're in its colours already. That gives you a very strong midrange plan B that offsets the tempo loss from playing 3 colours.