All For One has the ability to take Quirks from others and horde them, or put them in other people.
Let's say Supergirl from DC, and Spider-man from Marvel, were put in MHA, would All For One be able to take their powers.
Supergirl's powers are natural, but she's Kryotonian.
And Spidey is human, but his powers aren't natural, they came from the spider bite, not from another person who got them from another person.
Would that be enough to stop One For All taking their powers?