I present to you Cleaver Frenzy the best build I've ever tried. 78-79 Dmg. I reached the 14th floor pretty easy. This screenshot is the result of gradually removing pieces, below there is another screenshot of my build at the end of floor 9.
Floor 14 setup:
9th floor setup:
I noticed that superior Cleavers that didn't get the +2 bonus from the ring became obsolete. and all gems were replaced by simple mana. Since the ring for every 1 mana, gave +6 damage. And finally I was finding bricks and taking off all armor.