So me and an amazing persistent human being do old mount runs together.
She was for the longest time obsessed with the Fireowl from Amirdrassil but not at a mythic level of gameplay.
Needless to say she persevered on trying and created Amirdrassil parties on 10 characters weekly doing F2L2 skips. Took her a total 167 runs to get it to drop.
I’ve run Tazavesh over 170+ times for the black and blue gearglider. I have the words ‘Bow before Cartel So’ etched in my brain. No joy yet but I go again tomorrow on Heroic.
Sometimes they just don’t drop even when statistically it shows by that point 90% probably would have gotten it by then.