How to cheese out the Alexander fight: Make one of your teammate start the talking sequence, then start planning for attack, most likely get a ranged unit on top of the other side of the battlefield on a platform to do great overlook job Alexander, that lady with the shield, Delorus and your teammate will remain untargetable during the conversation. Now start the fight by hitting enemies that can be targeted There are 3 of them, because only Alexander and the shield lady is boss grade enemies, the encounter become much more easier. Replenish your health, source point, resummon your pets you can even save your progress and then you can finish the conversation and only fight 3 remaining enemies with all your skill and full HP. The range character on the platform is actually too far away, if enemies come that close they will count as leaving the battle, so no one can touch him/her, only you can shoot them but no one can get near you. You can also pop in and out stealth for Assassination in Huntsman skill as you will be counted as out of the battle once you are not shooting. Greatly increase your damage.