The first champion

Basically, Black Adam dies when he's struck by his own lightning and is reincarnated as Izuku Medoriya. He swears to be better this time and grows up as Izuku. Everything goes towards canon till he's chosen by the Wizard again. I do not own any pictures in the story, nor do I own DC (MHA X DC) Undetermined ship

Yu-Gi-Oh! Arc-V: The Galaxy Master

Kuroba Raiden has a sad life. A memories of his dead best friends make him suffer a lot. During his visit on his best friends' grave, he got dragged into the Arc-V world as reincarnation of Mizael from Yu-Gi-Oh! Zexal. Has been chosen by Galaxy-Eyes, he need to save the world from Academia and Z-ARC.