Instrument of Judgement stone

You wield a chunk of pulsating stone. As you wield a chunk of pulsating stone, its heft suggests you could give someone a good wallop with it. A chunk of pulsating stone feels like a part of you! Your ability in the skill wallop is at 0%(48%) Either I've been extremly unlucky, or something is wrong. I've used the wallop skill for like 50+ times so far (I've used it quite alot, more like 100+ times). And not a single improvement, and not once did I actually hit someone with the wallop. Even at 48%, I would have expected to at least once actually hit someone with it?