It is the act of using an Activated Ability by putting it onto the stack and paying its cost to resolve its effect while its on the stack.
- 701.2a To activate an activated ability is to put it onto the stack and pay its costs, so that it will eventually resolve and have its effect. Only an object’s controller (or its owner, if it doesn’t have a controller) can activate its activated ability unless the object specifically says otherwise. A player may activate an ability if he or she has priority. See rule 602, “Activating Activated Abilities.”
|Evergreen|| Activate • Attach • Cast • Counter • Destroy • Discard |
Exchange • Exile • Fight • Play • Regenerate • Reveal
Sacrifice • Scry • Search • Shuffle • Tap • Untap
|Other|| Abandon • Bolster • Clash • Detain • Fateseal • Investigate |
Manifest • Monstrosity • Planeswalk • Populate • Proliferate
Set in Motion • Support • Transform • Vote