How to build land into an Ezio 5c commander deck? | tcgmode

Apologies, kind of a basic question, but I’m struggling to find an answer. I can find what to put into the deck, but not an answer as to “why?” I still want to build the body of the deck myself, but idk how to run the mana in with 5 colors. Granted, the free running on Ezio’s card is going to ...