While it is possible for a small target to punch above their weightclass, they are the special exception that proves the rule of how much the weightclass matters in a real fight. Big beefy targets are inherently tougher than little fragile targets. Artificial armor, in this sense, like chain armor, is actually a bonus to toughness. Here ‘toughness’ is understood as ‘natural armor’, the ability to shake off a solid hit. Which makes me think, there can four defenses. It abstracts the number of ‘hits’ that are necessary before finally bypassing the defenses of the target. I feel the name ‘hit’ points works well enough.
