376.1. Triggered Abilities can usually be recognized by the word "when" followed by a game action or event; the word "at" followed by a point in time during the turn sequence; or the phrase “the [Nth] time” followed by a game action or event. Examples: " When you conquer here, you may spend a buff to draw 1." "At the end of your turn, ready 2 runes." “The first time I move each turn, you may ready something else that's exhausted.”

376.2. Triggered Abilities have a Condition and an Effect.

376.3. When a Condition is met, a Triggered Ability behaves like an Activated Ability and is placed on the Chain.

376.4. Some Conditions are commonly used and structured in a way that explicitly defines their use and other properties of the Effect that is associated with it.