Envoy Path
For the highest damage output I recommend starting off taking all of the Battle Tactics DMG Masteries, Then Wizard Masteries 1,2, and 3. Then grabbing Wizardry for the extra range. After that take Wizard Studies 1,2 and 3. After you have all these save your points until you're able to unlock Frost Nova and Void Storm. The pick up Storm Caller as your last Mastery as it procs with both your Flash Storm and Void Storm.