In case you somehow missed this detail, the sharks in Fortnite are, in fact, loot sharks. This means that if you kill one (before it kills you), you'll get a weapon and some ammo, and there's a good chance it will be a Legendary weapon. The downside? It takes quite a bit of time and more than a few bullets to kill a loot shark, often making it a risky activity. That is, unless you have Dr. Doom's Arcane Gauntlets and Mystical Bomb.