Wheels are generally fine in a vacuum, but its very easy to abuse these and create disgusting advantages
The original Kamigawa block also introduced spirit payoffs, with cards like Celestial Kirin, Infernal Kirin, and Kyoki, Sanity's Eclipse standing out as options
Cards that convert resourceshere, creatures into Treasure tokensare staples of combos and other shenanigans possible in the format, so finding a home for Ruthless Knave shouldn't be hard
Generous Gift (Modern Horizons) We often hear about how this card or that card should have probably been white
Sorcery speed is a big hindrance with threats such as Heart of Kiran and Glorybringer, and with all of the Gods from Amonkhet block having some form of indestructibility, I dont expect Walk the Plank to be the most-played black removal spell of the set