With the old 7.1.5 changes, Fire is now much more likely to favor more Intellect (thus basically higher ilvl pieces are an upgrade) over changes in secondary stats. As for those, Fire has always liked high amount of crit and nothing has changed about this.
Crit is what makes the spec fun and ultimately what allows it to do the most damage.
Depending on gear, haste might become around as valuable as crit, so don’t forget to sim. Aside from making your casts and GCD shorter, haste also reduces the cooldown on Fire Blast, so it has a sort of reinforcing relationship with crit.
For the two remaining stats, versatility is slightly better than mastery usually.
- Critical Strike
Shard of the Exodar is a decent legendary if Bloodlust is used on the pull, as it allows us to get multiple bloodlust effects. To clarify, this ring allows us to use Time Warp whenever we like, ignoring the usual debuff. The most optimal way to use this if the fight is over 5 minutes is to use your own Bloodlust on the pull, ask for Bloodlust from another player after this and then Bloodlust again yourself after 5 minutes. If the fight is under 5 minutes it's usually easier to have someone else Bloodlust on the pull and use yours whenever you want.
Marquee Bindings of the Sun King is one of Fire's best legendaries in single target situations. After using Hot Streak there is a 15% chance to gain a 15 second buff that causes your next non-instant Pyroblast to deal 300% more damage. This means that you must track this proc and hardcast a Pyroblast before casting another instant Pyroblast. You should also use this proc and hardcast during Combustion if you can.
Koralon's Burning Touch causes our Scorch to deal increased damage to enemies under 30% health and always deal a Crit. This means that we should always be casting Scorch over Fireball on targets under 30% health. This is our second best legendary for single target situations.
Darckli's Dragonfire Diadem doubles the damage of Dragon's Breath and massively increases it's range. This is our strongest AoE Legendary and should be taken on fights that have consistent targets spawning. With this legendary equipped, you should cast Dragon's Breath on single target, off cooldown wherever it fits in your rotation. In heavy cleave and AoE situations, you should pair this legendary with the Alexstrasza's Fury talent.
Pyrotex Ignition Cloth makes your Phoenix's Flames also reduce the remaining the cooldown of Combustion. Coupled with Kindling, this legendary will give you very frequent burst windows, which can be great, especially if there are adds spawning every 50-60 seconds.
Contained Infernal Core will automatically cast a Meteor on your target when you cast 30 Fireballs or Pyroblasts. This is a decent single target legendary, however, bracers will still remain the best single target legendary.
Trinkets & Effects
For Tomb of Sargeras trinkets, you should go for them in the following order:
- Tarnished Sentinel Medallion
- Terror From Below
- Tome of Unraveling Sanity
- Charm of the Rising Tide
- Spectral Thurible
Race plays a key factor in squeezing out that extra DPS from your Mage, here are the best races for each faction:
Horde - Troll:
Alliance - Dwarf:
- Might of the Mountain - Makes all of our Crits deal 2% more damage.
If you are currently one of the following races, I would say that a race change is not worth it as they are relatively close in practice: Troll, Orc, Dwarf, Blood Elf, Pandaren.
- Neck: Enchant Neck - Mark of the Hidden Satyr
- Cloak: Enchant Cloak - Binding of Intellect
- Rings: Enchant Ring - Binding of Critical Strike
You should always use the following consumables to maximize your damage: