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18+ All Naruto Characters Kekkei Genkai Pictures. It's possible for a shinobi to have more than one of these abilities. Blood prison and ryūzetsu was the only known user.

AS 10 KEKKEI GENKAI MAIS PODEROSAS (Naruto) | Player Solo ...
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The mangekyo has some power genjutsu and ninjutsu to be sure. It's possible for any ninja to have a couple of of such abilities. Kekkei genkai are abilities passed down genetically within specific clans.

These powers are inherited and over powered.

That's up to you to decide. It's possible for any ninja to have a couple of of such abilities. Sha no sho, страница 313: What are kekkei genkai(bloodline limits)?