The special effect stacks with Paralysis, effectively tripling its potency. In essence, it works just like the said skill.
Stats (Level 31)
This ring was crudely crafted by a barbarian wise woman from the fulgurite left behind after a lightning strike. It still possessed a strong connection to the force that birthed it, and the wise woman used its power to strengthen her own magics in order to defend her tribe from Westmarch invaders.