I got a little disappointed today. I took Dianara out rare hunting for her Frostbitten achievement at 5pm server time, and made a complete circle of Northrend to absolutely no avail. I started to get worried that maybe I jumped the gun in assuring you that I could complete this achievement in 5 days or less.
Now, I know that Northrend has been relatively empty since the Cataclysm™, and that is in part why this technique is so successful. Apparently everyone got bored this week. There were 5 people camping Vyragosa/TLPD spawn spots. And those were just the alliance campers.
So, I did the only logical thing I could think of. I raided on my druid, Hearthyn.
After the raid, I decided that I really want the Time-Lost Proto-Drake mount on Hearthyn, and not Dianara. So, since Dianara already has the Stormpeaks rares needed for the achievement, I parked Hearthyn up at the end of Bor's Breath near Siffreldar Village, sat for about 1/2 an hour, then logged Dianara on. I began hunting rares on Dianara, and each time I killed one, I would log back on Hearthyn and camp Bor's Breath for another 1/2 hour or so, flying around every 10 minutes to make sure I didn't miss a spawning of either Vyragosa or Time-Lost. I also checked Skoll and Dirkee's spawn spots, just in case they spawned instead. If they had, I was prepared to kill them in an effort to attempt to speed up Vyra's or TLPD's spawn rate.
This was my first kill of the night:
Whoa! I already got that one! But then my efforts started to pay off:
Sadly, once again, Vyragosa spawned instead of Time-Lost Proto-Drake:
After that kill, I found some more new ones for the achievement on Dianara:
So, in 2 nights of hunting, I think I've actually made really good progress.
I just may make it yet! Happy Hunting!