Hi, having played Arcades myself I have a few suggestions. I would cut the mana creatures that aren't walls and use 2-Mana land ramp instead like
Rampant Growth or
Edge of Autumn. This way boardwipes don't hurt as much. Speaking of boardwipes, I think you deck lacks protection for your creatures. Cards like
Wrap in Vigor or
Rootborn Defenses are cheap options. Return creature to hand spells for 1-2 mana can remove unwanted blockers on your opponent's side and save your commander from targeted removal. Generally you want to play as many cheap walls as you can. But be careful with the ones without effect that cost more than 1 mana. If you commander is not on the field they feel pretty dead in the and and on the field. Lastly I would cut cards that are not walls and therefore don't draw you a card e.g.
Skullwinder and
Teyo, the Shieldmage. Instead you could add more spells like
Tower Defense to end the game with powerful attacks.
Bar the Door,
Solidarity and
Aven Warcraft to name a few. I hope this could help.