A creature can be goaded by multiple players. Doing so creates additional combat requirements.
July 3, 2020 · Core Set 2021
Neither activating an ability that creates a regeneration shield nor casting a spell that creates a regeneration shield is the same as regenerating a permanent. Effects that say that a permanent can’t be regenerated don’t preclude such abilities from being activated or such spells from being cast; rather, they cause regeneration shields to not be applied.
May 3, 2019 · War of the Spark
If cards in a player’s library are shuffled or otherwise reordered, any revealed cards that are reordered stop being revealed and become new objects.
January 25, 2019 · Ravnica Allegiance
If cards in a player's library are shuffled or otherwise reordered, any revealed cards that are reordered stop being revealed and become new objects.
April 27, 2018 · Dominaria
If cards in a player’s library are shuffled or otherwise reordered, any revealed cards that are reordered stop being revealed and become new objects.
September 30, 2016 · Kaladesh
rule 701.15c not present in this release
February 1, 2014 · Born of the Gods
If a player is instructed to search a hidden zone for cards that match an undefined quality, that player may still search that zone but can’t find any cards.
October 1, 2012 · Return to Ravnica
If a player is instructed to search a hidden zone for cards that match an undefined quality, that player may still search that zone but can't find any cards.
September 30, 2011 · Innistrad
If a player is searching a hidden zone simply for a quantity of cards, such as "a card" or "three cards," that player must find that many cards (or as many as possible, if the zone doesn't contain enough cards).
June 17, 2011 · Commander 2011
If an effect would cause a player to shuffle one or more specific objects into a library, but
April 1, 2011 · Duel Decks: Knights vs. Dragons
If an effect would cause a player to shuffle one or more specific objects into a library, but none of those objects are in the zone they're expected to be in, that library is not shuffled.
February 4, 2011 · Mirrodin Besieged
If an effect would cause a player to shuffle one or more specific objects into a library, but none of those objects are in the zone they’re expected to be in, that library is not shuffled.
October 1, 2010 · Scars of Mirrodin
If an effect would cause a player to shuffle one or more specific objects into a library, but
February 1, 2010 · Worldwake
If an effect would cause a player to shuffle one or more specific objects into a library, but none of those objects are in the zone they're expected to be in, that library is not shuffled.