Buying HOT with gems?
You cannot buy HoT with gems, only real world money.
The Burninator
but my friend told me that he bought it with gems
The only part of HoT you can buy with gems is if you purchase HoT standard (again this requires real world funds), there is then an option in the gem store to upgrade it to deluxe that can be purchased with gems.
The Burninator
oh so the only way i can get daredevil trait line in pvp is if i buy HOT with real money?!
Yes, you have to have HoT to unlock elite specializations.
The Burninator