I’d personally be fine with it having elemental RR, but I was just personally keeping it in line with the current skill’s RR and rough damage being adjusted for the new form.
If nothing else, it would be an excellent skill to drop chaos RR on.
If elemental RR might be too strong (Just because it would feed into it’s own damage, and majorly buff Spellbreakers who historically aren’t super in need of buffs), Fire/Lightning RR would be a great compromise. Would help out Sorcs significantly, as well as lightning caster druids, both combos that are historically weak.