Chipped - Why it would deal more?
Imagine an axe with many small chips in it. You thrust the axe into someones shoulder, and the chips get wedged into his muscle, bones, whatever it hits, and would deal much more damage if it was too smash against a shield. If the chip was large enough, it could hold a swords blade and block an attack very well. If I had the choice to go into battle with a shiny, new axe, or a new but chipped axe, I'd pick the chipped one. Point proven.