Gorr and the Valkyrie w/Mangog vs the Marvel gods

The Valkyrie take Gorr to Valhalla (pis) after he dies, they soon come to realize that Gorr's opinions on the gods are true so they destroy Valhalla and and souls that are there and retrieve the All black the Necrosword and shatter it so each one gets a piece (pis) as they attack Asgard someone comes up with the bright idea to go fetch Mangog. Mangog, now also with part of the All black the necrosword decide to continue Gorr's mission to destroy the gods.

How far do they get and who can stop them.

Not many if Aaron is writing them.

Well Gorr almost did it solo . All black took a regular human level being to skyfather plus so now what thousands of skyfalther plus beings? Mangog would be all that's needed as he would be around Galactus level give or take. Solid abstract plus anyway. Gorrs bomb would still fail and then Mangog would beat the gods to death.

The cover art would be nice, a valkyrie with Odin's head while walking over a shattered hammer.