Monstrosity is a keyword action.
- 701.28a “Monstrosity N” means “If this permanent isn’t monstrous, put N +1/+1 counters on it and it becomes monstrous.”
- 701.28b Monstrous is a designation that has no rules meaning other than to act as a marker that the monstrosity action and other spells and abilities can identify. Only permanents can be or become monstrous. Once a permanent becomes monstrous, it stays monstrous until it leaves the battlefield. Monstrous is neither an ability nor part of the permanent’s copiable values.
- 701.28c If a permanent’s ability instructs a player to “monstrosity X,” other abilities of that permanent may also refer to X. The value of X in those abilities is equal to the value of X as that permanent became monstrous.
|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