According to Magelo it's about a 10% drop rate. Seems to be similar for other augs across this expansion https://eq.magelo.com/npc/536441
I was just camping that named other day and he spawns alot in the 2 hours i was there he must of spawned 4 or 5 times seriously it was alot ..never dropped the type 7 but i did get the 5.. and even if you have to kill him 50 times for an type 7 at a 95AC aug is def worth it .. and it should be Rare ..
Calling them "name" is wrong too, being that many dont even have names anymore. a restless behemoth a massive dracoliche a moon bat a ravenous entropy serpent a restless warlord a toxic phase spider another great green slime a blessed racnar And thats just from this expansion, so lighten up. The technically correct term is "a rare creature".
Not 100% accurate, but magelo quotes the drop rate of the carved panther fang at 12% and petrified sharktooth at 10%. It's at least an indication on a slightly larger sample size than most of us individuals.. https://eq.magelo.com/npc/536441
On Luclin over the weekend I equipped 6 characters with the AC95 tooth. But I only saw one fang in all those kills. Total time in camp was probably 10 hours over 3 days.
I'm about 10 namer kills in. I've seen the jewel of the seas 2 or 3 times.. Saw the type 5 agi aug one time Everything else was the 1 hander. No dex aug yet. Not complaining just mentioning for comparison sake. ***UPDATA***Night 3 here last night 5 more spawns no aug nbd