Even if you dont consider horus to have earthbusting powers. His hax and speed more than make up for him being able to punch above his weight class. He one shot the emperor outright with just one psychic blast at the start of their fight.

>condenses the entire dbs Multiverse down to a singular point

Can anybody in deathbattle
possibly defeat horus? Let alone kill him?

Horus could beat simon. Just put him in a pocket dimension where he goes insane for thousands of years like what happened to rogal dorne.