"Fire burns the forest, forest absorbs the water, and water puts out the fire."
When attacking:
Fire elemental attacks do x2 damage to forest elemental opponents
Forest elemental attacks do x2 damage to water elemental opponents
Water elemental attacks do x2 damage to fire elemental opponents
When defending:
Fire elementals receives one half damage from forest elementals
Forest elementals receives one half damage from water elementals
Water elementals receives one half damage from fire elementals
