If an effect would cause a player to shuffle one or more specific objects into a library, that library is shuffled even if none of those objects are in the zone they’re expected to be in or an effect causes all of those objects to be moved to another zone or remain in their current zone.
July 3, 2020 · Core Set 2021
A player may planeswalk as the result of the “planeswalking ability” (see rule 901.8), because the owner of a face-up plane card or phenomenon card leaves the game (see rule 901.10), or because a phenomenon’s triggered ability leaves the stack (see rule 704.6f). Abilities may also instruct a player to planeswalk.
April 27, 2018 · Dominaria
Schemes may only be set in motion one at a time. If a player is instructed to set multiple schemes in motion, that player sets a scheme in motion that many times.
September 30, 2016 · Kaladesh
rule 701.24c not present in this release
May 1, 2014 · Journey into Nyx
To proliferate in a Two-Headed Giant game means to choose any number of permanents and/or teams that have a counter, then give each exactly one additional counter of a kind that permanent or team already has. See rule 810, “Two-Headed Giant Variant.”
September 30, 2011 · Innistrad
To proliferate in a Two-Headed Giant game means to choose any number of permanents and/or teams that have a counter, then give each exactly one additional counter of a kind that permanent or team already has. See rule 810, "Two-Headed Giant Variant."