Both Kiora's ( Kiora, Master of the Depths / Kiora, the Crashing Wave ) are good in Muldrotha since you can just use their negative ability twice and then recast! (You can use them twice a turn every-other turn)

I also liked the ability to self sacrifice my stuff for value and reuse. I also diversified my permanents to maximize how much I could fill a turn. Check out my list here Muldrotha Graveyard Schenanigans

Dead_eye5 Thank you for the advice! I have played with the idea of running one or both of the Kiora's, however in my meta planeswalkers are usually dealt with before they can really prove their worth. That being said I would be able to abuse the ability the turn they enter so I might have to do that. Thanks again for the advice and I checked out your deck and it looks like lots of fun!