All 30 students present in the battle were fighting each other. All those spiritual warriors were attacking those other warriors from a distance. Those spiritual warriors seem to have come up with a plan. All of them know that they won't be able to win against this physical warrior if they fight with them in close combat. Because of this, those spiritual warriors want to eliminate all those physical warriors first, and then they will fight with each other.
All those spiritual warriors were attacking those physical Warriors, but don't underestimate those physical Warriors. They also seem to understand the plan of those spiritual warriors. Because of this, those archers were targeting those spiritual warriors. So you can say that all those students are now divided into two teams: a physical warrior's team and a spiritual warrior's team.
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