Add elements! It's something that affects your bow/sword damage, but elements should have weaknessess, so i suggest that everytime fire players attack water players, it would be just .5 instead of the normal element users(1) and water players will have 1.5. and so applies on other 2 graal-based elements(water,fire,earth,air).elements such as earth-water or air-fire or air-water or earth-fire do neutral damage to each other, which means remains it's normal damage to each other. elements are only unlocked once you get 5000 pks and 7500 baddy kills though.