Interesting thing about this one (and the other spiders in Droga) is that the name is not capitalized. So the rangers/druids that use tracking to find all the named sometimes miss this one.
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-- Sylphan Ducambrius, Master Artisan and Enchanter on Cazic-Thule
This mob has spawned for me 3 or 4 times as hte last spider spawn before exiting Droga.
If you are standing at the entrance from FM look up and to the left you will see a ledge, thats where you gotta get to (invis works good if ya know the way nothing will see ya). Once you make it to that ledge take out the mob that spawns there (goblin mob), then just work your way back down you will see a tent and campfire the Savage spider will spawn just to the right of that, PH is usually a normal spider (possibly a goblin).
I got the ring 4 times I have got mob to spawn so bracer is rare, just taking a guess on spawns I saw I would say named 4 PH's 10.
I solo'd this camp fairly easy you will get an add on a few pulls but shouldnt get more than 2 at once just make sure you pull back up to the top just before drop off to zone or have a snarer as the mobs will flee back toward adds.
I sold one ring for 7k or so then gave the rest away.
Hope this helps and feel free to rate this post if it works for you /smile