There are two graveyard philosophies here and a bunch of enablers that either can use. Their are payoff cards that want to consume the graveyard, and ones that want as full as possible. I don't think I want to be all in on the super full side as the payoffs are just ok and not necessarily unique, can be done in other ways. This means we don't have to load up on enablers and can instead rely on simply casting our spells to good effect, leaning into the copy side of the build. Most cards are being examined in this light anyway. Glamdring and gandalf's sanctions are must includes, but neither need too much support to be good on their own. The graveyard stuff that is most appealing then are the recursion spells, especially the ones with added value. For the consumptive spells you only want a few of these because they compete against each other, my favorite is arcane bombardment.