Killed him twice with a group of 10/10/9/8. Lots of resists/misses, so we just kited around the rock when needed. He dropped the skinning knife both times.
Just to note, the "trash" mobs around the Manor can drop several good items. Here are a few I have found recently:
(1) Ethereal Long sword - 7 dmg, 2.8 delay, 1 str, 1 agi (1H Blade Weapon)
(2) Ethereal Dagger - 5 dmg, 2.4 delay, 1 agi, 1 dex (dagger)
(3) Ethereal Great Axe - 15 dmg, 4.1 delay, 1 str, 1 stam (Great Axe)
(4) Ethereal Chain Gauntlets - 14 AC, 1 dex, 1 cha - (Chain, Hands)
(5) Ethereal Chain Hauberk - 28 AC, 1 str, 1 stam (Chain, Chest)
Killed 12/29/24 - Level 26 now not level 21, dropped Ring of the Drawn - no stat ring that only says ''Equipping this ring has a strange effect..." , ring gives permanent illusion to look like one of the Drawns while it is equipped. https://imgur.com/a/6q2KIJd
Seen two Ritual Clobbers and one Gem-Encrusted Mace. Need a lot more drops to be sure, but likely they pulled the Hobgoblin Rock Crusher from Drog and made the Gem-Encrusted Mace his rare.
Killed easy sooling with 13shaman. repop is fast 3-4min. Place holder = king rabit. Had to kill 4 place holders and then the named poped. Dropped the ring first kill.
Seems to be a legacy item, probably a replacement for the torn map fragment for A Map Fragment? leading into the quest that drops the Consecrated Shield, Runed Bo Staff and Runed Staff