The Incarnation of Light is a potion for Captain Falcon. When he drink this potion, He will have Powers such as

-Control over Fire Manipulation (absorb fire attacks and add energy to his muscles)

- Growing Muscle Mass( he can insanely growing muscle mass that his arm instead grows twice as big and explodes out of his costume)

-Unexplained fire powers(Due to He have control over Fire)

- Galaxy-destroying punches( He grow mass muscles until he is so big that he even doing Galaxy punching. But not his own galaxy)

This makes him because the Incarnation of Light or as A God

(Some of the  Powers based on this tweets:
https://twitter.com/rippedsaurian/status/525369414091563009?s=20
https://twitter.com/rippedsaurian/status/526025187293405184?s=20
https://twitter.com/rippedsaurian/status/525854084134236160?s=20
https://twitter.com/rippedsaurian/status/535512639188000768?s=20 )