Swords

Dagger - Costs 1,000 Beri

Wakizashi - Costs 5,000 Beri

Tachi - Costs 7,500 Beri

Katana - Costs 10,000 Beri

Flail - Costs 50,000 Beri (You can't buy this from normal weapon island.)

Krizma - Costs 80,000 Beri (You can't buy this from normal weapon island.)

Yoru - a better version of the ultra greatsword, and arguably the best sword, because of such high speed and damage. obtained by getting 100,000 kills. does 500 damage at max sword w/o haki and does 1000 damage per hit with haki and max sword stat.

Monokuma - aka baby yoru is obtained by 10k kills. i dont remember the exact damage, BUT it's a generally bad sword because of how small it is.

Ultra Great Sword - Obtained by defeating the Pursuer, This is the 2nd best sword in the game, 400 damage with max sword stat without haki and very fast, BIG swings. 800 damage with haki, max sword stat and fast swings, with a big hitbox.

Golden Fish - get when you fish 10,000 fish