How to increase Hawkes key damages in dragonage 2?

[vinceeee]

Hey there! I'm begining DA2 and i did the dlc heritage by the begining of the act 2. but the probleme is, i didn't know that i woould find such a great weapon as the hawkes key. Now i'm begining to be overlevel compared to his damage. I searched all of nexus to find a way to give it the "lvl up with your level" attribute but didn't find any. I'm doubtfull taht nobody found a wayy to mod this so if you know of a way pray tell? (sorry if you find my text hard to read i'm french and my english is soso)