I did it in unranked and it was pretty insane.
The best way to do it, I think, is to be reaper since getting those fly amarics on ranger seems tougher than getting the hero sword on reaper.
Then you want to just, not combine poison or vampire until you really need the space, or you’re about to go primeslime.
Having several base gooberts healing you is better. Still, you’re going to be pretty weak so doing it in ranked seems a bit difficult.
I got an early steel goobert which I used on a bag of stones which let me stabilize for a while, but still wasn’t able to complete it until about round 15, but once it was in, people had a hard time knocking me below max health and my scaling was insane.
They went fully blind very quickly, so I was only susceptible to reapers but their scaling was way slower than mine if they had no weapons. Seems like exodia tbh.