To get Shisui, Wando, and Saddi in Blox Fruits, you need to follow specific steps. First, ensure you have reached level 850 to interact with the manager. After that, complete the Bartella quest to unlock the legendary sword dealer.
Next, speak with the manager in the server. He will initially say it’s too early, so wait 10-15 minutes before talking to him again. The manager will then provide updates on the dealer’s arrival. Pay attention to the messages indicating the dealer’s spawn time.
The messages will be like, “Some pirates said they ran into him on a nearby island last week” (3+ hours until spawn), “A man claimed to see his ship nearby today” (1 hour 15 minutes until spawn), “I think you should be getting here soon” (15 minutes until spawn), and “Hey, I just saw him” (dealer has spawned and will be available for 15 minutes).
Once the dealer spawns, search for him in various locations, including the graveyard. When you find him, you can purchase a sword for 2 million Belly. Since the dealer sells only one sword at a time and the selection is random, you may need to repeat the process multiple times to get all three swords: Shisui, Wando, and Saddi.
Be patient and persistent, as this process involves significant waiting times. With determination, you will eventually collect all the legendary swords you desire in Blox Fruits.