Sidar Jabari of Zhalfir deck help!

So ive been trying to upgrade the cavalry charge precon and generally build a strong deck centered around the knights tribe. My main goal is to pump out a bunch of knights, buff them up, and then swing at my opponents leaving them not a whole lot of options other than take the damage. Im still decently new to magic so im not totally familiar with deck building so any help is much appreciated. Im specifically worried about my mana base and my spread of spells. Theres also so many great cards for this deck it was so hard to decide what to cut. I dont have the biggest budget in the world so id definitly prefer cheaper options. Thank yall for any help

https://moxfield.com/decks/xali3k5T3Uy0us23JUH0jQ