as As far as i I know every boss does that with the exeption exception of warzone 4 5 4, 5, and 6 but seems like it was secretly fixed because even if you die you get rewards if you hit it, even if your it. Even if you're killing a boss that has conflict with others monsters and still die you get rewards, for example rewards. For example, the other day i I was doing drume Drume and it summoned one of the most damage dealing falcon mini boss and it killed the 3 lion commander and made me leave while the drume Drume was in dark red wich which was close to the kesar, i Kesar,. I left because i I failed and went to scarlet, when i scarlet. When I was at ankrahmun dessert Ankrahmun desert a message apears appeared about the loot i I got from drume, so Drume. So even if a monster in conflict kills the boss while you are out of the arena and you did certain damage you still get rewarded