PLD AoE Idea: Light Burn

[Starbirth]

Would it work something like this http://wowwiki.wikia.com/wiki/Seal_of_Vengeance? If so 5 stacks at 20 potency would make it on par with Unleash and Overpower.

Yes but this trait would be AoE and flashes after the 5th would only reset the timer on the stacks.