This question and this other question have excellent answers describing the concept of "aspect permissions". To summarize my understanding of the answers, they explain that aspects shift the boundaries of what's trivial and what's impossible for a character, moving actions in and out of what you should roll for. So if the Strongest Man in the World wants to kick down a door they probably don't need to roll for that, but a character without that aspect probably would. The Strongest Man in the World can lift a heavy gate with a roll, but a character without that aspect couldn't do it at all. And the aspect doesn't have to be on a character; asking directions from an NPC probably doesn't require a roll; asking directions from an NPC that's part of an Angry Mob at least requires a roll and might be impossible.
So far so good. My question is how this interacts with combat, where rolls are opposed, particularly in games where aspects might significantly influence approach to combat.
Say you have a superhero game, and we have two characters:
- Alice, who is Precognitive, and has Fight at +2. Game discussion has established that Alice uses her precognition to be a frighteningly effective fighter, but without it she's only a Fair fighter.
- Bob, who is Clairvoyant, and has Fight at +2. Game discussion has established that Bob uses his clairvoyance to help the team's situational awareness, etc., and it doesn't have a direct combat use.
When Alice and Bob are in combat, without invoking aspects, they're equally effective at Fighting. But that seems a bit odd; Alice's aspect should have very strong applicability to combat, but Bob's doesn't. That does mean that Alice can probably invoke her Precognitive aspect in combat more often, but now she has to pay a limited resource to make use of something that's narratively always there, and if Bob can find things to invoke he's still just as effective. This feels a little odd.
Is this how this is meant to work? Should Alice have assigned skills so that she has a higher Fight to represent her precognition's assistance? (but then how would you mechanically handle a Power Nullifier?). If aspects with this significant an effect on combat are going to be involved should some kind of extra system be built up around them, like a Powers skill that can be used for anything you use your power to do?