You have to do all the STORYLINE missions in Triton avenue, Firecat alley, Cyclops lane, and Collosus boulevard to earn the Master diplomat badge, I have it already, (actually, i got it a LONG time ago) so i know.
but doesn't being a diplomat mean being a wizard of storm magic how does doing colossus buolevard? This makes no sense to me.
I believe that you just had a misunderstanding. A storm wizard is a diviner, not a diplomat. The reason you are called a diplomat is because you persuaded the Gobbler King to stop destroying all of Colossus Boulevard.
Life School: Theurgist Balance School: Sorcerer Myth School: Conjurer Fire School: Pyromancer Death School: Necromancer Ice School: Thaumaturge Storm School: Diviner So diplomat is not storm wizards it means you have completed all the quests in Triton Avenue, Firecat Alley, Cyclops Lane and, Col Boulevard.