From a competitive standpoint, not many of these see much play, although Ketramose, the New Dawn is the face of a hot new Modern combo deck
Future sets might offer different flavors, like fairytale anime styles (as with Eldraine) or perhaps something more gritty or comedic
River Song River Song is crazy good and Im not even referencing the draw from the bottom of your library part
Esper Terra keeps making copies of any nonlegendary enchantments you control
OCCAMS MINDRAZER Its true that the most obvious deckbuilding choices are often the best, and I have so far skirted around the really straightforward way to get value out of discarding: cards with whenever you discard effects
This card costs five Ink to play and has three Strength, six Willpower, and generates two Lore when questing, but its Bodyguard ability makes it a powerful addition to any deck