(Put the top three cards of your library into your graveyard.) Threshold This creature gets +2/+1 as long as there are seven or more cards in your graveyard
What did surprise me though is how nice the Graveyard subtheme ended up being: I count 20 cards that interact with the graveyard directly with a very generous definition, including anything that recurs (Starfield of Nyx), puts itself in the graveyard (Binding the Old Gods), puts other enchantments in the graveyard (Nyxborn Behemoth), or triggers off enchantments going into graveyards (Narci, Fable Singer)
What Formats Still Allow Ante Cards
The set of four Warhammer 40k Commander decks is not colour balanced
This has trended down from a high of about $5 so far, and I completely expect it to approach bulk status
House and Preston will let you customize the deck with non-Fallout cards most freely, in either dice-rolling or enchantress, but otherwise The Master, Transcendent is probably the most splashable in general for Sultai decks