Are you equipping the Cloth Punching Wraps for the fight? It won't count if you're using any other weapon. And if you're doing it in a group, the killing blow just means you have to get the final hit to kill them.
For the wolf paw in this quest take the road east from crossroads to the bridge where the bind stone is. Hang a right after the bridge and go up the hill. There are some thugs up there but behind them are the cursed wolves.
There are or were 3 drinks you could brew that had environmental resistances:
Sunbrew +5 Frigid Environment Resistance
Blackblood Tea +5 Toxic Environment Resistance
Moonbrew +5 Scorching environment resistance
Workers do not seem to do this - it only seems to be the Redjacket Stingers that use the ability Sacrificial Sting, and if you do enough damage at one time before they get the cast off, the cast will interrupt and they will start running away. - Did this several times, waited until the last second when they got to around 40% hp and then used a weak instant then a 2sec cast spell, usually finished before they did and they would turn and run if the damage was enough.
I think they usually spawn in gloom environments (hence the name) - so for example Spirit Manor, and I think I've seen them spawn in the skelly camp just outside Availia too.
These mage hunter initiates seem to spawn outside the western tunnel exit from the summoner, and up the hill. I only saw 1 up at a time. The coin was an uncommon drop, I got it after the 3rd kill.
he now wanders to the left of where the redjacket queen is, that little strip next to that area, some cultist walks through there too
also dropped a orc skull general item
In the heart of Halnir Caves, the master smith Ulstad crafted the legendary Blood Iron Plate. Using Glimwort Pulp, a rare glowing fungus, and Spectral Essence drawn from the cave's restless spirits, he forged the armor over a searing month. The full set gleamed with an eerie light, its dark metal pulsing as if alive, promising its wearer unyielding strength and spectral protection.