T, Sacrifice a Forest or Plains: Search your library for a land card, put it onto the battlefield, then shuffle your library
You may not use its Oracle text or its name in other languages
I talked about it a bit in article I wrote ten years ago called "Zen and the Art of Cycle Maintenance." For those who don't want to read the link, here's the short version: Aesthetics is the science of beauty
After a few days of matches with this build, I realized what a nightmare Oblivion Stone was for us
Another way to think of this is, "Do we want the flicker cards to enhance your cards or hurt your opponents' cards?" You tend to flicker things of yours that you want to come back into play, such as cards with "enter the battlefield" (ETB) effects, while you tend to flicker things of your opponents they don't want to have leave and come back, such as creatures with +1/+1 counters and Auras
Whether you're looking for the most valuable promo cards ever or are more interested in collecting cute Pokemon, you'll find everything you could want in the best Sun & Moon era choices