Unless youre playing casual Commander, chances are your manabase will be made up largely of nonbasic lands
I thought Commander players would prefer to run shiny Ugins in their decks (back then, I assumed Ugins eternal play demand foils- would solely come from the Commander crowd)
Other cards that are great at generating Blood tokens are Exsanguinator Cavalry, Kamber, the Plunderer, Restless Bloodseeker, and Voldaren Bloodcaster
If youre a casual player who isnt interested in Legacy or Vintage, or amassing a carboard collection, theres honestly no reason for you to care
Im really not into putting Furycalm Snarl or Volatile Fjord into my deck unless I really need to, so that probably means green or black for the new Innistrad: Midnight Hunt slowlands
While not all of these are equal, they can all be a lot of fun if you get some of the key cards in M21