To get a sword in Blox Fruits’ Second Sea, follow these simple steps. First, head to the Kingdom of Rose and defeat the boss Diamond to obtain the Long Sword. If you’re in the Green Zone, beating Fajita will get you the Gravity Cane.
Next, in the Hot and Cold area, transform into Mr. Smokey, and you might find a sword. On the Cursed Ship, you can exchange ectoplasm for the Midnight Blade. At the Ice Castle, defeat the Ice Admiral or other NPCs to get a hidden key. This key will grant you the Ring Goku sword.
For the Dragon Trident, go to Skull Island and defeat the boss there. Additionally, keep an eye out for the Legendary Sword Dealer NPC, who appears at certain intervals and offers other swords.
These steps will help you gather powerful swords in Blox Fruits’ Second Sea. Enjoy your adventure and become stronger with each new weapon!