User blog comment:JaphethMario/Goomba vs Koopa. Super Mario Rap Battles/@comment-6632076-20171219225540/@comment-26134732-20171220043301

Geno vs kamek - Not sure what's the connection, besides blu8e wizards with magic powers

Rosalina and Luma vs Peach and Starlow - Maybe.

Yoshi vs Birdo - Probably, I was thinking for Vivian vs Birdo for a while

Wart vs Tatanga (forgotten Mario villains) - Yes