Uses quick-application Poison as a main source of damage WITHOUT need for any of the DLC
+5 Poison Black Scorpion Stinger in left hand, +10 Poison Moon Butterfly Shield in right hand, +10 Raw Avelyn as alternate for the shield
Full Moon Butterfly Set
2H the shield and try to hit. if they dodge a lot, use the stinger to poison stunlock. ONLY use the avelyn at HP of under 600 w/ poison active.
Also, if you want to customize the build, I'd recommend dropping the strength stat down to baseline for the Avelyn to be used 1H. The reason I have it like this is because I use a separate build for PvE that utilizes the 27 STR