I hate you.
I've farmed Strat for that mount a bajillion times over and it just would never drop.
As for the topic: I got the Green Proto-drake mount in one satchel. I don't know how much cash I spent on numerous characters purchasing the egg from the Oracles getting everything BUT the drake. I give up "farming" the egg and do a random dungeon - first one of the day, I might add - and I get the drake. I'm sure there's a punchline or something hidden here. I'll be damned if I can figure it out, though.