I check again the deck again. 38 Lands is ok, you have 4 artifact to play with the mana, i recomend "
sol ring" and you can play "
Boros Cluestone" "
Orzhov Cluestone" and "
Rakdos Cluestone" 8 artifact to add or play with the mana pool should be perfect. Just test with different builds to see witch one is better for you.
I recomend you some creatures that you could play: "
Aurelia, the warleader" and "
Gisela, blade of goldnight" And of course, the new eldrazi
angel "
Brisela, voice of nightmares" (search for Bruna and Gisela to play it). You play with a lot of creatures (34) you could reduce this number to 25 and replace it for artifacts to run faster the deck or spells to reduce the cost, maybe creatures that reduce the cost. Add cards to draw fast could be a good option.
I dont usually play commander so i can't give you more advices. Just make 3 or 4 versions of the deck and test it, then you could see the weak point of the deck.
Good luck