Chaos's Legendary Boon allows you to gain an extra Death Defiance for the duration of the run. I know normally you can't get duplicate boons from gods, but Chaos's boons are very different mechanically and I'm not sure whether they follow the same rules as the other gods.
If I were to reroll enough and get very lucky, could I end up with 2+ extra Chaos-granted Death Defiances on a single run? Or is that not possible?