Rule 377.2

Card text will refer to activating Activated Abilities with the word “use” or “play.”

• 377.2.a If “using” or “playing” an Activated Ability is part of a trigger condition, that condition is fulfilled when the…
• 377.2.b If an Activated Ability has a condition on “using” or “playing” it, that condition must be true in order to activate…

Official Core Rules