It's diceless. All characters have access to all abilities, as long as they're willing to pay the cost. Being good at something just means it has less or no cost. If you take on enough cost and don't get it down the safe ways, your character permadies.

This is a reflection of the fact that the player characters are gods of world ending power who can do anything... but it's hard. Maybe your character can blow up the moon if they so choose. But that's a lot easier than remembering to eat breakfast every day. That's right, the gods of the void have (a disability that's an allegory for) autism and ADHD.