A mate and i used to duo Bloodlord Mandokir for the raptor for a while, but eventually ran out of interest in doing it. However recently i found out that brewmasters could also solo farm it, and 4 solo kills later i walked away with my Armored Razzashi Raptor - giving me 4/4 ZG mounts now
That and i have farmed and won ony drake / alar / midnight / barons mount / aq bug / flametalon and the list goes on.