"All the cards that matter" means we'll be working toward all of the cards that are regularly played in Pioneer decks, much the same way that Vintage on Magic Online doesn't contain every 2/2 for two ever printed, but it does contain all the cards needed to mimic the paper Vintage format
capwner on Do You Have Pet Cards? 2 months ago My most pet card for EDH is Timesifter and by extension all the deckthinning tech for it like Trench Gorger, Mana Severance, Endless Horizons, and for pulling out nonlands you have Skyship Weatherlight and Selective Memory
Stiltzkin, Moogle Merchant From a pure power level, Stiltzkin probably should be even lower, but the moogle merchant is an interesting donating card that could open up some fun play for people, and isnt something we see too much of
But if Sedris, the Traitor King cant help with that, you can always use Chainer, Nightmare Adept or Feldon of the Third Path so that your graveyard doesnt go to waste
In some cases they do break the rules