How to Complete Throw Down
In this battle, the objective is to defeat Klesta. You can choose three units from your clan to participate in this battle. There will be four guest units from House Bowen: Veis the Assassin, Loa the Ravager, Tweigel the Illusionist, and Bowen, a Fighter.
In this battle, Bowen can't be killed, and neither can Tweigel. The other members of House Bowen can be killed, and you can't bring them back with Phoenix Downs.
Your clan can completely avoid damage if you avoid standing in any of the squares that Klesta is facing. Since Klesta is three squares wide, there is a path three squares wide that you should avoid if you want to prevent Klesta from hitting you.