The Elder God would solo. Kain would do a good job of a solo too however with Dante being the only real threat. I dont agree with the idea Kain would be defeated handedly or however you spell it so that could be argued as well if you cannot find a way to beat the EG. Not sure if Dante can even touch or see him, assuming he can, the EG would sooner multiply and expand across the DMCverse before Dante can cause any real damage.
Urm.. what can EG even do? All I've seen from it in a combat sense is tentacle waving. Id even say that Nero could take Kain, much stronger than him and unlike Bayonetta can actually 'run circles around him'.
As a verse the only threats from LoK are EG, Kain and Raziel. Besides them the rest aint a big deal and can all be taken out by the fodder in the DMC verse.
By sheer size he could bury Saviour. Whats Nero done to suggest hes stronger than Kain and can run "circles", I dont recall? I suggest Dante kills Nero for Kain when Kain mind controls him, then rips out his own heart before Kains "soul displacement" of dante kills him.
I could say the same about Dante, nero and vergil. I doubt it, the fodder in LoK>>DMC in many cases for example puppets, shadows etc, all pretty slow and weak compared to lightning Deamons, greater deamons etc. You have the Sarafan which have various shields and hand held cannons, they would cut down most melee threats since a lot of DMC foes have no guns. The only major threat would be the DMC 2 high tech tanks which would win but thats not major when the EG can bury the lot of them.
Also I would like to see how the DMCverse takes out the circle of nine, or even a few of them who can create the Dark eden reality warp bubble. Just a few of them can turn a entire region into a warp of time, space, flesh and reality.
Frosts are described as colder than absolute zero.
Having below zero swords does not automatically make them able to defeat all LoK fodder. By the looks of it, Nosgoth has heavily trained armies, soldiers and magic users AND Demons in their fodder while most of the DMC forces are simply demons and undead, few of them likely have any structure. The hylden lord posses Sanctus, who controls saviour who stomps al the little DMC fodder into dust before pulling its own head off and collapsing on those annoying "infected" dmc 2 abrams tanks 😄