Its a player designation, not an effect, ability, or trigger, which means you are the monarch (
For a Mountain, this piece has a lot of green coloring in it
Some cards can exert yours to open up a challenge
You could just cast Beanstalk Giant if you have need of smashing now or you don't want to risk Fertile Footsteps getting countered
This may well be poor question wording on my part, but it also reveals a potential gap in the general publics awareness of visual resources that they can find in a librarys digital collection
Living Energy is green, blue, and red (Temur) and led by Saheeli, Radiant CreatorSaheeli, Radiant Creator, a 4/4 Human Artificer that gives us an energy whenever we cast an artifact or Artificer spell