I feel like saying Poliwrath is better isn't true. A physical and a specail pokemon fill different places. Lapras, it doesn't learn some moves, and I think your overlooking mega launcher. An aura sphere from clawizer has 120 power, meanwhile one from, say, a lapras(can it even learn that?) Would be 80 power. While yes, it is outclassed by things like lapras and milotic, it should be said that clawizer can have a greatereffect than the others if used correctly