I see a few people with builds like this and wonder if there is some exploit to farm items or something. I rarely ever see duct tape (even past level 20). So rare in fact that I have only ever seen it show up in my games two times. And that is nothing to speak of the sheer number of rare cleavers you have!
Saw the duct tape plenty when it was rare, before I knew it's real potential. He is on floor 54 here, so lots and lots of fights, shops to comb through loot. The cleavers seem to come up a lot, I've had 4 queen, 2 king, and a jack pre 15 before, and I've really only tried the cleaver strat a few times. That duct tape chain is beautiful, though.