Triggered abilities have a trigger condition and an effect. They are written as “[When/Whenever/At] [trigger condition or event], [effect]. [Instructions (if any).]”
January 25, 2019 · Ravnica Allegiance
Triggered abilities have a trigger condition and an effect. They are written as "[When/Whenever/At] [trigger condition or event], [effect]. [Instructions (if any).]"
June 5, 2017 · Commander Anthology
Triggered abilities have a trigger condition and an effect. They are written as “[When/Whenever/At] [trigger condition or event], [effect]. [Instructions (if any).]”
September 30, 2016 · Kaladesh
Triggered abilities have a trigger condition and an effect. They are written as “[When/Whenever/At] [trigger condition or event], [effect].”
May 1, 2014 · Journey into Nyx
Triggered abilities have a trigger condition and an effect. They are written as “[Trigger condition], [effect],” and begin with the word “when,” “whenever,” or “at.” They can also be expressed as “[When/Whenever/At] [trigger event], [effect].”
September 30, 2011 · Innistrad
Triggered abilities have a trigger condition and an effect. They are written as "[Trigger condition], [effect]," and begin with the word "when," "whenever," or "at." They can also be expressed as "[When/Whenever/At] [trigger event], [effect]."
June 17, 2011 · Commander 2011
Triggered abilities have a trigger condition and an effect. They are written as “[Trigger
April 1, 2011 · Duel Decks: Knights vs. Dragons
Triggered abilities have a trigger condition and an effect. They are written as "[Trigger condition], [effect]," and begin with the word "when," "whenever," or "at." They can also be expressed as "[When/Whenever/At] [trigger event], [effect]."
February 4, 2011 · Mirrodin Besieged
Triggered abilities have a trigger condition and an effect. They are written as “[Trigger condition], [effect],” and begin with the word “when,” “whenever,” or “at.” They can also be expressed as “[When/Whenever/At] [trigger event], [effect].”
October 1, 2010 · Scars of Mirrodin
Triggered abilities have a trigger condition and an effect. They are written as “[Trigger
February 1, 2010 · Worldwake
Triggered abilities have a trigger condition and an effect. They are written as "[Trigger condition], [effect]," and begin with the word "when," "whenever," or "at." They can also be expressed as "[When/Whenever/At] [trigger event], [effect]."