Hello, I have done the quest on Green as well.
I was planing to do it twice to get a pair of magic 6/23.
My friend was level 24 mage at the time, and me Warrior 16. We duoed the quest.
First time we got Basil and my friend killed him in 2 secs I didn't even have to help and take a faction hit.
Second and last run to get my second Langseax and we find Paglan waiting for us in the woods o_o level 24 mage lost his pet and had to summon a second one mid-fight and burn his mana with DD and almost died. I tried to help but a 16 warrior couldn't do much, barely take some hit from the pet to extend its HPs... but he finally died and we got the head and the 2HS Langseax of the Wolves
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I think SoW is probably necessary in the WK part.
But yeah, Paglan is a hard hitting truck, you will need help.
Good luck!