[swordtart]

Anything behind only 3 points of armour is going to be ablated by half the hits by from a 1D weapon.

I don't doubt that your eggshell armed with hammers could make a kill in the arena. That assumes it can last the 3 or 4 seconds needed to get into point blank range and that you can hit with enough HRs to penetrate your opponent. I think that survival is marginal at best.

I doubt whether you will survive beyond those 3 or 4 seconds to collect your winnings and that is its fundamental fatal flaw.