Jeanne d'Arc, Mad Maiden (MP01-036 N) [Masterpiece "Pilgrim-Memories"]

This card gains [Swiftness] and [Eternal] as long as you control three or more J/resonators. (This card can attack and you can play its [Rest] abilities already during the same turn it enters the field. And it cannot be destroyed.) If this card would deal damage to a J/resonator, put a [-100/-100] counter on that J/resonator for each 100 damage instead.