Left-Hand Shark

If this card is Special Summoned from the GY: This card's Level becomes 4. You can only use each of the following effects of "Left-Hand Shark" once per turn. If you control "Right-Hand Shark", and this card is in your hand or GY: You can Special Summon this card, but banish it when it leaves the field. An Xyz Monster that was Summoned using only WATER monsters as material, including this card on the field, gains this effect. • This card cannot be destroyed by card effects.