According to Magic's Head Designer Mark Rosewater, the Through the Ages bonus sheet contains cards from throughout Magic with a fun twist
It also works pretty well in the environment because the Paradox Power deck and Timey-Wimey deck both do a lot of bringing in from exile
Otherworldly Gaze If you count Surveil spells as self-mill (and I do, given how rarely you see triggers that care exactly how cards end up getting from your library to the graveyard), then Otherworldly Gaze is as good a choice as any for the most consistent, efficient, no-bells-and-whistles version of the effect
My favorite art for this card is Tony DiTerlizzis from Urzas Saga with the cute goblin kid in stripey PJs
Each booster has a returning legend in a special frame
Madison Li still nets you energy if it stays on the board, providing a constant threat of artifact reanimation