Cuttlebone Knife
Fishblade+2 to +3Merchant line

Cuttlebone Knife

Only the ghost merchant sells this line. A blade of it shows this look once its highest grade reaches +2, until +4.

Before and after

Kelp-Wrapped Blade ShardKelp-Wrapped Blade Shard+0 to +1Cuttlebone KnifeCuttlebone Knife+2 to +3Crab-Shell SawbladeCrab-Shell Sawblade+4 to +5

See every Fishblade form on the Fishblades page or the whole evolution tree.