9 Elements : Action fight ball

These days, players are used to being spoon-fed easy victories with some pretty easy-to-win games, especially on Mobile. I tend to dislike these games as the novelty of winning easily tends not to sit well with me. And then I heard that 9 Elements : Action fight ball is actually quite challenging, so I decided to try it out. At the heart of it all, 9 Elements is just really a 1-v-1 volleyball game... where you can attack your opponent. And you really can! The attacks vary for each character, and it can be quite challenging for the one attacking or the one receiving. Should you attack while the opponent is setting up a spike or should you ready yourself for a massive attack? Should you play it safe and just do a normal spike while your opponent peppers you with fireballs or take the risk and do a massive special move as you spike?