Glimpse of Tomorrow
Sorcery
Shuffle all permanents you own into your library, then reveal that many cards from the top of your library. Put all non-Aura permanent cards revealed this way onto the battlefield, then do the same for Aura cards, then put the rest on the bottom of your library in a random order.
Legal in
Modern, Legacy, Vintage, Commander
Rulings (19)
Taking it slowly, here's what happens as Glimpse of Tomorrow resolves:
2021-06-18
Any abilities that trigger during the resolution of Glimpse of Tomorrow will wait to be put on the stack until everything is put onto the battlefield and resolution is complete. The player whose turn it is puts their triggered abilities on the stack in any order, then each other player in turn order does the same. (The last ability put on the stack will be the first one that resolves.)
2021-06-18
If you own any token permanents, they will also be shuffled into your library. They'll count toward the number of cards you reveal. Even though the tokens will technically be in your library until Glimpse of Tomorrow is finished resolving, they won't affect the shuffle or the cards you reveal.
2021-06-18
If a permanent leaves the battlefield this way but ends up in a zone other than a library (most likely because it's a player's commander), it's still counted to determine how many cards to reveal.
2021-06-18