Some trigger events use the word “becomes” (for example, “becomes attached” or “becomes blocked”). These trigger only at the time the named event happens—they don’t trigger if that state already exists or retrigger if it persists. An ability that triggers when a permanent “becomes tapped” or “becomes untapped” doesn’t trigger if the permanent enters the battlefield in that state.
July 23, 2021 · Adventures in the Forgotten Realms
Some effects refer to a triggered ability of an object. Such effects refer only to triggered abilities the object has, not any delayed triggered abilities (see rule 603.7) that may be created by abilities the object has.
July 3, 2020 · Core Set 2021
Some trigger events use the word “becomes” (for example, “becomes attached” or “becomes blocked”). These trigger only at the time the named event happens—they don’t trigger if that state already exists or retrigger if it persists. An ability that triggers when a permanent “becomes tapped” or “becomes untapped” doesn’t trigger if the permanent enters the battlefield in that state.
May 3, 2019 · War of the Spark
If a triggered ability’s trigger condition is met, but the object with that triggered ability is at no time visible to all players, the ability does not trigger.
January 25, 2019 · Ravnica Allegiance
If a triggered ability's trigger condition is met, but the object with that triggered ability is at no time visible to all players, the ability does not trigger.
February 1, 2014 · Born of the Gods
If a triggered ability’s trigger condition is met, but the object with that triggered ability is at no time visible to all players, the ability does not trigger.
September 30, 2011 · Innistrad
If a triggered ability's trigger condition is met, but the object with that triggered ability is at no time visible to all players, the ability does not trigger.
June 17, 2011 · Commander 2011
If a triggered ability’s trigger condition is met, but the object with that triggered ability is at
April 1, 2011 · Duel Decks: Knights vs. Dragons
If a triggered ability's trigger condition is met, but the object with that triggered ability is at no time visible to all players, the ability does not trigger.
February 4, 2011 · Mirrodin Besieged
If a triggered ability’s trigger condition is met, but the object with that triggered ability is at no time visible to all players, the ability does not trigger.
October 1, 2010 · Scars of Mirrodin
If a triggered ability’s trigger condition is met, but the object with that triggered ability is at
February 1, 2010 · Worldwake
If a triggered ability's trigger condition is met, but the object with that triggered ability is at no time visible to all players, the ability does not trigger.