Just tank a CoS N for Soul Preserver for a guildie healer. We reached the end of the dungeon, and killed Mal’Ganis, but then while we were waiting to open the chest, Mal’ganis healed to full, and we have to redo the entire encounter. We got him down to 1% again, and the encounter should have ended there. It didn’t. Mal’ganis sat at 1% and continued to attack us. After 2-3 mins of attacking Mal’ganis at 1%, we wiped because the healer went oom. After wiping, he started attacking Arthas. We watched the fight, every time Arthas got low HP, he’d heal, and continue to fight. After a few mins of watching, we released hoping running back would reset Mal’gais. A FULL 7-8 MINS LATER, we’ve run back, and approaching the end… Mal’Ganis and Arthas are still going at it. Arthas is oom, both are at 1%, and neither one will die. We eventually just left the dungeon without the loot, and ate the time loss.
Not sure what caused this, but it was extremely entertaining. Just annoyed we wasted our time for no loot