It's an undeniable fact that the water elemental is the most important range attack monster in the water team. In battles it's important to use at least one range attack monster and therefore this card plays huge role in water team.
Water elemental has enough speed to not miss the enemy and he can also heal himself which l always put this card at the end because it will be hard to kill him. Water elemental also has dodge ability which can evade melee attacks. Health of this card is also not bad. This card also has high(4+) range attack which is another advantage.