Arcane: Arcane Empowerment - Clearcasting can now stack 2 additional times, and increases the damage of Arcane Missiles by 5% per stack. Clearcasting no longer reduces the mana cost of Arcane Explosion. Fire: Flamecannon - After standing still in combat for 2 sec, your maximum health increases by 3%, damage done increases by 3%, and range of your Fire spells increase by 3 yards. This effect stacks up to 5 times and lasts for 5 sec. Frost: Concentrated Coolness - Frozen Orb's damage is increased by 10% and is now castable at a location with a 40 yard range but no longer moves. Monk
In terms of what the World of Warcraft Classic Best Classes are, Warrior and Priest stand out almost instantly. This is partly due to the fact that Protection Warrior is the only viable Tank Class in WoW Vanilla Patch 1.12. Both the Proc Warrior and Priest are required for Raids and when combined in a PVP setting can be a fierce combo on the battlegrounds.