mtg white black commander deck Realm Guard TCG/MTG 100+ Card Art Box With Storage (Black/White) : Toys & Games MTG Black Commander Deck Staples

But the baseline here is still pretty unexciting to me

Whenever you gain life, put that many +1/+1 counters on target Halfling or Treefolk

Hall of Gemstones is incredibly disruptive for most decks with two or more colors and will force your opponents to be very careful about how they use their mana rocks

Even if you don't have a Rat to regenerate, it can still tap for colorless mana

Tendril of the Mycotyrant Tendril of the Mycotyrant has an expensive activated ability, but its animated lands are among the most impactful on the list since theyre permanently 7/7s, not to mention all the +1/+1 counter synergies you can layer on