Its a good suite of abilities, and a very easy fit in basically any Green deck
That leaves Kazuul in an awkward spot where it doesn't actually do what it says on the card very often
Reaper King One of the original boogeymen of EDH before the format was renamed to Commander, the only thing that kept Reaper King from being an extremely toxic tribal build was the fact that there werent that many Scarecrows in Magic back then, and most that were in print were fairly mediocre
I love Auras and Goad so this weird mix is greatly appealing to me, but Kaima is a terrible leader for a Modify deck because it doesn't incentivize you to modify your own creatures at all
Theft is a key part of the blue/black Dimir decks (though it has spread to other colors) and is a very fun, if notorious, way to play Commander
Coincidentally enough, that's something that many decks want to do anyways