Skill Effect
I. By tapping a Runestone on the Magic Circle of Elements,
⇒ explode all Runestones to generate Elf Runestones not of that type.
For 2 Rounds:
II. Drop rate of that type of Runestones becomes 0.
III. Each Elf and Water Member in the Team launches 2 extra attacks as much as 30% of its attack.