Got mine this morning too after the same level 85 showed up exactly 12 times when I was there, and he was unhallenged, and all those 12 times in a row he showed up I was trying to get my final trinket. I could have pulled my hair out every time I seen him appearing. I actually celebrated more when he got his AGM achieve from Short John than when I got my own because I knew that now he wouldn;t come back.
Is there really any point to having two of these? I don't think I'd be quick enough to swap out the insignia tricket everytime it has cooled down in the BGs. the extra 120 hp would be nice but I can see myself bashing the insignia hotkey at a crucial moment only to realise it's not there.