I am lvl 87 and trying to upgrade my from Uchigatana +10 to Uchigatana +11. After checking the giant smith in anor londo and the smith in undead parish, none of them offered me to upgrade to 11. I am supposed to have titanite chunks. I have nine of them :-/
01 Answer
To reinforce weapons to +11 and higher, you need to give the Very Large Ember to the blacksmith in the Undead Parish. It can be found in the New Londo Ruins after you've drained the water.
