The battle system in Monster Hunter Stories primarily revolves around a simple attack triangle. Power beats Technical, Technical beats Speed, and Speed beats Power. It is simple rock, paper, scissors, or janken. Monsters have an affinity to the kinds of attack they like to use, and you can use that to your advantage, to pick stronger moves. Attacking a monster also attacking you causes a head-to-head, where, if you win, you can essentially negate enemy damage, while dealing loads of your own.