It can saves you 1x Sc in inv
20l Fire Dmg no use and use 20l 3 Max 20 Ar
and so your jewel in final will be 40% Ed 3 Max 20 Ar
wich is very good melee jewel weapon and also works on armory
with no bug as 3 max 20 ar are sc bonuses ;))
my guess.
(players aow use sc 1x 20l 19-29fire dmg or so also cold dmg and psn)
Nothing can interrupt ww, slow, stun etc doesn't work.