[Workshop of Brilliant light] Vulcan Easy clear - F2P (Stats in description) 

What a brutal fight to get into at my level, took me a full day of perfecting the setup, i kid you not that i HAD to follow exactly what i did, otherwise i wouldn't have cleared (and i did some errors there and there, making it insanely close !), with a theoretical perfect run, i would probably have around 10/20s left i would suppose...
Sung jinwoo:
Level: 72
Total power: 109'887 (solo) / 284'036 (total)
15'854 hp / 19'586 atk / 5151 def
i.imgur.com/YWdfzv2.png
Artifacts sets:
Toughness x4 + Expert x4
Blessing stones used:
Bloodlust / Double-edged Sword / Chains of Blood / Boss Slayer (epic)
Skills:
Armor break - Iceberg (lv10)
Multistrike - Rush (lv8)
Weapons:
Plum Sword A2 + Scythe A5 both lv80
Vulcan's Blessings:
I don't remember exactly, but i had 1x 30% ultimate skill and this absolutely made the diff, then it's just some buffs for myself and 2 debuffs (one that make him take more damage, and the other reduce 1.5% def/hp/atk)