I did the random page on the Superpower Wiki and got something called Metamorphic Combat:
"The user can fight/defeat anything through a metaphoric clash of selves- their ideals and belief in them, passions, passion, beliefs, self-belief, confidence, talents, etc, as reality becomes a figurative expression of the clashing of these things. This means they can fight others that are far beyond their own strength and capabilities if they possess conviction in their own ideals and self, etc, strongly enough, and more strongly than others involved."
it sounds like main protagonist plot armor