KMST 1.2.460 - Xenon

A 10% Damage boost isn't worth spending the money for, honestly. All stat is more expensive that any other stat, it just doesn't seem worth it to go for all stat rather than LUK or STR or DEX for a total damage boost.
Then again, it's just me, and people who are into spending more for damage may possibly disagree.

I hope you realize it goes up to 50% total damage.

And that you're talking to locked.

And yes it is worth the money.