>>527715573
I'd say wait for the banlist.
If MD decides to follow the OCG and limit Tract and Engraver, Fiendsmith will fall off hard and Cryston will be good for longer time.
Ryzeal is better than Maliss, but Ryzeal also gets hit and falls off.
Ryzeal is safer in MD I think, it's the strongest deck from the ones you mentioned and will be safe from the banlist for several months.