Titanite Chunk: Consumable Item for Weapon Reinforcement
You can use Titanite Chunks to improve your weapons.
You need 2 Chunks for +7, 4 Chunks for +8, and 6 Chunks for +9.
To get a weapon from +6 to +9 you’re going to need 12 Chunks.
Initially, Titanite Chunks were only ever discovered in Lothric, and although few recorded chunk findings exist, they have been found throughout the years.