1 Exquisite Blood, and Vito, Thorn of Dusk Rose (or Sanguine Bond) By far the easiest infinite life-loss combo out there, this uses just two cards: Exquisite Blood and Vito, Thorn of Dusk Rose
youve still got Nevs Disk and Oblivion Stone, sure
Just as every deck needs graveyard hate, youll also need a way to get rid of annoying utility lands across the table
Its a trait carried through various versions of Blood Artist, though, courtesy of LA Draws, Carl Critchlow and Joshua Howard (sort of)
Partner (You can have two commanders if both have partner.) If your Commander deck has two commanders, you can only include cards whose own color identities are also found in your commanders' combined color identities
Even better, you get to pick one of those cards to add an additional two mana tax to cast it or activate abilities from it