If you banish a resonator that is both wind and darkness, you must still banish another wind or darkness resonator to activate this card's ability.
This card is a valid target for any spell or ability that would deal damage to a J-ruler or alter the ATK/DEF of a J-ruler. Since this card has no ATK/DEF, no damage will be dealt to it by these spells or abilities, and effects that would alter its ATK/DEF have no visible effect.
You cannot choose this card to be an attacking or blocking J-ruler.