[OP: ]
A non-peaceful battlefield.
Some children fighting with swords and shields on one side and some children fighting with spears and arrows on the other.
Some were relentlessly using magic with no sign of remorse for the victims that fell to their spells even though they were people that they had known for a while now.
Big weapons were being used, though they were not siege weapons.
The students can use anything that they had on this battlefield but there were criterias, and there were also rules that they had to abide by if they didn't want to get disqualified by the teachers.
This was a real battle simulation so practically anything that could happen on a battlefield was allowed here. However, formally, ethics of all individuals fighting in a battle had to be in their places.