Every so often I'll think of some crazy lawyering potential in the rules or an upgrade, but I usually just decide to ignore it. Or I'll search it here and find my answer, but i didn't know how to search this.
So, for OEs, doe you have to reroll all the dice at the same time, or can you roll them individually? Before you call me crazy, hear me out.
This step occurs during the modify step, at the same time as adding dice. So if you reroll before adding a black die via any multitude of means (let's say CF), can you still reroll that CFed die? I would think the answer is yes in this scenario (though I don't know why you wouldn't just add the die first and then reroll). However, let's say I'm fishing for crits with 3 black die, but I roll a blank, hit, hit. I choose to reroll with OE a blank and hit, to get hit, hit. I still haven't rerolled that third die. Can I reroll that third die using the same upgrade card as it is still during the same timing used to reroll the first 2 die?