So with my LS, after hundreds of Ou runs, we experienced a quite peculiar behaviour from Ou tonight, never happened before to us, and this happened on our second run for the day.
We normally proc Gardez at 15%, wait a few secs to make sure all the relevant buffs are up, then zerg it to 0%.
Most of the time we kill it before he heals back to 20%, but even if he heals back, of course he always dies.
Now what happened today?
We were killing it very very very very fast, but at 2% he used Prophylaxis, which if you don't know is the move he uses after having recovered to 20% health and he doesn't die within XX seconds.
Yes, he used that move at 2%, screen went white BUT:
1) He didn't reset
2) Our position didn't reset (we were still engaged on him, hitting him)
3) He healed to 22%, not 100%
4) He started using ALL HIS MOVES again, in quick sequence, one after another. Unfaltering Bravado, Dancing Fullers, Gardez.
Not sure I saw him using Ebullient Nullification, Chainspell, Zero Hour or Target.
Regardless you can imagine most of us died lol.
We managed to recover without him resetting (he stayed at around 19% health), we waited for weak, rebuffed and killed it.
I dunno, I'm really curious if anybody else ever experienced that, it was QUITE WEIRD.
But also quite fun hahah