w/ prep constantine solos... its just his character to pull PIS cannons out of his ass. No prep I'd have to ask what runs your pulling characters from because Future Franklin Voidtry and KT are a doosy though Tim Hunter, and Shade can offset that. Swamp Thing in particular is a game changer. What stage are you pulling him from. God level ST, Elemental, average???? ST who nearly replaced Presence murderstomps, Elemental+Soul manip ST makes this a decent fight imo.
Also w/out prep John becomes a bit of a nonfactor here. He is not an upfront kind of fighter.