Brainstorm, Force of Will, Ice Fang, Hullbreacher
Done correctly, it helps protect against dust, moisture, and edge exposure, especially for decks you travel with
Get Odric, Lunarch Marshal or Concerted Effort onto the battlefield and have a good time
The best MTG proliferate cards are: Atraxa, Praetor's Voice Contagion Engine Contagion Clasp Thrummingbird Yawgmoth, Thran Physician Evolution Sage Vraska, Betrayal's Sting Sword of Truth and Justice What is MTG proliferate
With a weak theme easily answered by cards in Commander, it needed to push the theme's support more and not get lost in junk like Leafdrake Roost
Im of the opinion that all Commander decks should have a plan for the graveyard in some form, regardless of the commander you choose to run