Counter target activated ability, triggered ability, or noncreature spell
Although there is a lot of the set yet to be revealed which should increase the answers to locations (hopefully being flexible like the above song)
Moving to a location is a change of state for your characters, it doesnt require them to be ready and it doesnt matter if their ink is drying, as long as its your turn and you have the ink to do so, you can move a character to any location you control
Now, Vivi starts with zero Power, but that will quickly change, as it gains +1/+1 every time its owner casts a non-creature spell, while also dealing damage to an opponent
When this character quests, not only does the player collect 2 Lore points, but they then choose an opposing character to lose 4 Strength and one of their own characters to gain 4 Strength on that turn