Good Stuff decks prioritize individually powerful, efficient cards rather than requiring every inclusion to support a narrow synergy. The idea is simple: play cards that are strong on their own and trust raw card quality to carry the deck.
Demonic Tutor, Cyclonic Rift, and Esper Sentinel exemplify the approach in Commander. A Good Stuff deck may still have themes and combinations, but it usually isn't dependent on drawing several specific pieces before its cards become useful.