what does shark v3 do in blox fruits

In Blox Fruits, Shark V3 is a race-specific ability that provides the player with increased speed while in water and complete immunity to damage taken from water as a Blox Fruit user. There are no visual changes when using this ability. To obtain Shark V3, the player must first obtain Shark V2 by completing the flower quest from the Alchemist NPC in the green zone. After obtaining Shark V2, the player must reach level 1000, defeat Don Swann, and have 2 million money to obtain Shark V3.