“Clash with an opponent” means “Choose an opponent. You and that opponent each clash.”
July 3, 2020 · Core Set 2021
If you control no creature tokens when instructed to populate, you won’t create a token.
May 3, 2019 · War of the Spark
Monstrous is a designation that has no rules meaning other than to act as a marker that the monstrosity action and other spells and abilities can identify. Only permanents can be or become monstrous. Once a permanent becomes monstrous, it stays monstrous until it leaves the battlefield. Monstrous is neither an ability nor part of the permanent’s copiable values.
January 25, 2019 · Ravnica Allegiance
Monstrous is a designation that has no rules meaning other than to act as a marker that the monstrosity action and other spells and abilities can identify. Only permanents can be or become monstrous. Once a permanent becomes monstrous, it stays monstrous until it leaves the battlefield. Monstrous is neither an ability nor part of the permanent's copiable values.
April 27, 2018 · Dominaria
Monstrous is a designation that has no rules meaning other than to act as a marker that the monstrosity action and other spells and abilities can identify. Only permanents can be or become monstrous. Once a permanent becomes monstrous, it stays monstrous until it leaves the battlefield. Monstrous is neither an ability nor part of the permanent’s copiable values.
September 30, 2016 · Kaladesh
The listed choices may be objects, words with no rules meaning that are each connected to a different effect, or other variables relevant to the resolution of the spell or ability.