I think this is good too. I was just thinking that Arman was perfect for a timed survival battle, but do the others, like Rahel, have qualities that would make for a good solo battle?
I mean, with Arman, there was the strategy of where to run to and whether to jump on a building or jump down. What kind of strategy works with Rahel, or any of the others?
I think a battle with Griffin and Set would work nicely. It would also make for an interesting change to have them gone!
Maybe another could be with Set and the new recruits. It could be a protection battle, where he's trying to keep everyone alive. The recruits can move and fight, but not too well. Either the enemies must all be killed, or it's simply a timed survival game. Maybe Griffin can be there too, if there's a lot of enemies.