@LtDiablo75 Hi thanks for the report!
This scenario only happens when droideka had a bunch of charges. I believe it's working as intended. What's happening:
1. Droideka uses Destructive Armament on Arc.
2. Each stack is separate damage.
3. The first few stacks deal enough damage to kill Arc, triggering Fives sacrifice + healing Arc & buffing Rex, Echo, Arc.
4. The remaining stacks of DA deal enough to damage to still kill the healed Arc.
5. Arc dies.
6. The animation of Fives dying from sacrifice is played.
7. Player is frustrated.
If it were one lump damage, this wouldn't happen, but Fives sacrifice doesn't prevent further death on the same turn (like Revan Savior or Negotiators Unending Loyalty), so the subsequent damage still kills Arc.
