Fusion of elements

Whenever an elf is summoned, the elf star will gain 4 elemental elements. When superimposed, it will become a 4-element state. The [Elemental Fusion] skill can be used. [Elemental Fusion] can only be used in the state where the 4-element effect is obtained, and it will cause damage to the target when used. After using [Elemental Fusion], the 4-element element will be deleted immediately. After becoming a 4-element state, you cannot receive additional damage from the elemental stun scale.