Zardnaar
Legend
Chance of 2d8 matching = 12.5%
Chance of 2d8 treat 1 as 2 matching = 15.63%
Not that you roll 2d8, but that's all the math I want to do at the moment.
Well, 8d8 with Elemental Adept is 100% chance to bounce (assuming you hit).
From memory 6d8 is 92%, 7d8 97% and 8d8 is 99%. Without the feat.