Mage / Legion changes Arcane . Arcane mage abilities and gameplay already deliver on the spec ’ s fantasy quite well , so most changes are in the vein of polishing what ’ s already there . First , for added mechanical clarity , Arcane Charges are now an actual resource located underneath your Mana bar instead of a stacking debuff . The functionality is still very much the same , but this change should make their accumulation and use more distinct . The one significant gameplay change is that arcane has a new Mastery , which increases your maximum Mana by a percentage , and increases the damage bonus from Arcane Charges . This should make the Mastery feel a bit more interesting by allowing more aggressive Mana usage as your Mastery improves , and feel more empowering , ultimately giving you much more control over your rotation . Here ’ s a basic look at the core combat abilities for Arcane Mages : Additionally , to give you an idea of how some talents may build upon this , here ’ s an example of one of their Arcane - specific talents : Fire . Similar to arcane , fire already exudes its core identity , so our changes are focused on gameplay adjustments . Ultimately , you will have more freedom in what buttons you press and more control over the Heating Up mechanic , which is core to fire mages . In particular , the Inferno Blast ability was trying to fill two roles : spreading Ignite , and forcing a Hot Streak from a Heating Up . We ’ ve opted to move the spreading to an innate property of Ignite and have taken Inferno Blast off the global cooldown so that you can more freely and intuitively use it to trigger a Hot Streak . Another major change is the redesign of Combustion . It ’ s an incredibly complex skill , hard to understand for most people , and has the potential for either ridiculous success or critical failure , with the odds being extremely random and very hard to gauge much of the time . We ’ re redesigning it into something that fits into the Fire rotation in a clear and consistent way . Here ’ s a basic look at the core combat abilities for Fire Mages : Additionally , to give you an idea of how some talents may build upon this , here ’ s an example of one of their Fire - specific talents : Frost . Frost mages are very effective casters , and there ’ s already a lot to like about this spec . Frost ’ s defining traits and abilities are cohesive , the mechanics are understandable , and there are plenty of opportunities for players to explore unique gameplay at a variety of skill levels . Rather than making any dramatic changes to how a frost mage plays , we ’ ve focused more on fixing one particular outlier in their Spellbook : Frostfire Bolt . After removing the fire portion of the spell , it began to feel like just another Frostbolt , and we started to wonder how a spell supposedly combining frost and fire wasn ’ t just producing a puddle of water at the feet of the enemy . We ’ ve removed Frostfire Bolt and made Frozen Orb part of the core spell kit in its place , which better lends itself to the identity of the Frost Mage . Here ’ s a basic look at the core combat abilities for Frost Mages : Additionally , to give you an idea of how some talents may build upon this , here ’ s an example of one of their Frost - specific talents :