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 in the Commander variant), it's still counted to determine how many cards to reveal.
Warp World
4) Each player puts all artifact, land, and creature cards revealed this way onto the battlefield. All of these cards enter at the same time.
Tokens are permanents but not cards. They'll count toward the number of permanents shuffled into your library, so you'll get a card back for each token you owned. But the tokens themselves should be ignored while you're revealing *cards* from your library. In practice, you shouldn't actually shuffle them into your library since they'll cease to exist as soon as Warp World finishes resolving. Note that a token's owner is the player under who created it.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Ron Spencer
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
