A good start includes 35-39 lands and a handful of rocks, though certain decks (particularly artifact-focused ones like Breeches, the Blastmaker or Slobad, Iron Goblin) will play more
Instead of Squirrel or Food tokens, he gives you Blood
Wilderness Reclamation Banned in various 60-cards formats because doubling your mana is cracked, Wilderness Reclamation is likely underused in Commander because its been pretty expensive for an uncommon up until now
March of Wretched Sorrow can deal X damage to a creature or planeswalker, and it gains X life back in return
Opponent has Rest in Peace
Not only does he make a token that will usually be huge in this deck, he allows your artifacts to produce mana, and has a mana sink ability that you can use all of that mana on