Jitters Caffeine said:
Now here's my question this time:
No, no, no.

Your question really is "what can you say about my DM ?"
And here's the answer : he has very low INT/PER/WIS scores.
No, really, DM isn't just to sit there and look nice. He is to enforce rules and mantain proper balance.
He should either :
- call a meeting and describe to said player what RPGaming is really about (hint : fun for ALL involved) or
- construct the scenario in such way that overpowered character won't make a difference or
- punish his character (curse or something)
There's nothing to really debate here, unless you're said DM.