Can each individual die explode? Do both (all) dice have to come up 0's? (this would seriously lower their chances of unleashing Righteous Fury)
For example, the simple Frag Grenade does 2d10 damage. What if both dice shows 0's? Do you test for RF once? Twice? Are both dice re-rolled if either of the tests pass? Or do you roll one extra die no matter how many 0's you got on your original roll?