The exotic is lackluster, it simply pales in comparison to something like Heart of Inmost Light and even Severance Enclosure in terms of lethality, and it's melee regeneration is only half of An Insurmountable Skullfort.
This exotic buffs one ability, compared to everything else's generalized damage increases; please, buff this exotic.
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It should allow it to blind any targets caught in the lightning strikes, give the lightning strikes more damage, and allow Thunderclap to insta-charge.