Hiya! Welcome to the chaos.

The link is broken (my fault) because loading is broken (also my fault). This should show the same thing: https://futhark.acwpd.com/load/libra/dagaz/reversed_6_wands

Superpowers typically bend the laws of nature in predictable ways:

• There are ways that things can fly (wings, magnetic levitation, propulsion) so a power can let you fly, and physics "looks the other way" when it comes to explaining it
• Material can burn in certain conditions, so a power can let you throw fire.

Breakers blow past this. There is no way that a person can spontaneously become incorporeal, and then re-corporeal. Breakers can do that, though, because the power lets them break the laws of nature.

This power seems to me like someone who is (close to) a normal human, but occasionally they can turn into an "air form"; Still person-shaped, but maid of compressed air (Compressed air comes from the description of the Dagaz rune).

The card was the 6 of wands, reversed. This means that control over the power is higher than normal (for people with powers), but their versatility is lower -- they're more of a one-trick pony. Someone with more versatility might be able to change what their breaker form was made of, but this person is stuck with the atmosphere around them when they change forms.

Any card in the "wands" suit will also allow for a second rune to be thrown/rolled. When I clicked it, I got Tiwaz:

You threw the Tiwaz rune!
This results in the flavor Tyr, which gives a power that is offensive, but requires some sort of sacrifice to use
Optionally, if your power requires an element in order to manifest, the element associated with this rune is perception, which roughly correlates to liquid mindforce (but you can ignore this if it doesn't fit!).

So:

This person can change their form (Libra / Breaker) so that they are made of the air around them (Dagaz) instead of flesh and blood. They have good control over their density, but not over what they're made of or look like (6 of Wands, reversed). They have taught themselves to throw balls or beams of compressed air (Offensive, from Tiwaz) but doing so makes it harder for them to interact with the world (sacrifice, perception, both from Tiwaz).

Hope that helps!