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Comment by Monlyth

Wait, does this just double your critical strike chance or does it give you a 100% chance to crit for its duration? Anyone know?

Comment by Adunai

What I don't like about it is that it's dispellable. Even though it gives a fixed 100% crit chance, it still has a weakness of the old (vanilla - WotLK) spell.

Comment by Paspartu

What is it? With basic crit chance (50-60% minimal) + Initiation for example? 80-90%...

Useless... 100% crit dmg was better than only chance which kill this ability.

Comment by Taraezor

In Legion, Fire Mages will want to marry up Combustion (level 28) with the Tier 3 (level 45) Talents. Combustion is cast simultaneously with these.

These notes form the "Cooldown" aspect of a Fire Mage's rotation. The bread and butter side of a Fire Mage's rotation is all about generating Hot Streak! and I do not discuss that here.

It does appear that Blizzard intends Combustion to be an intense use of instant Pyroblast. So you MUST test whether or not to include any of the following with your Combustion, with the exception of Rune of Power.

Mirror Image is the no-brainer. It has the same 120s CD as Combustion. Just hit both keyboard buttons together. Actually it will be safer in a macro if possible as that will guarantee they are never out of sync. Players report that Mirror Image, so far in Legion, is performing very very poorly. Watch for Blizzard to fix this in an upcoming patch.

Rune of Power is tough to finesse. The following is a simplified exposition: Always have a charge of RoP ready to cast simultaneously with Combustion. Use your other charge of RoP as often as possible but make sure that RoP is always ready for Combustion. Casting an RoP causes a 10s CD on RoP and the wait for a recharge could effectively be as long as 30s.

This is easy to practice on target dummies. In practice, you will be moving around a lot and keeping an eye on your Combustion cool down.

You may think that all of this is tough. Veterans of WoW will tell you that RoP hasn't always been "this easy" to use. You once had to aim it on the ground. The WoW server does it for you in Legion!

Incanter's Flow has a sine wave like buff and one cycle is 10s. Combustion lasts 10s. IF is passive. If Mirror Image is easy to use with Combustion then Incanter's Flow is even easier. You literally do nothing except cast Combustion on CD. In fact, as Combustion is OFF the Global Cooldown then you'll be marrying it up (with a macro) some other long CD spell.

Tier 4. Your Blast Wave and Flame On level 60 options (the other is passive) cry out to be included in this CD burn cluster. When you get Combustion on, now is the time for these. Flame On is the more difficult to manage but that's what Target Dummies are for.

Does the Fire Mage rotation have a whiff of having been made easier to do? Well... that's the way things have increasingly become in WoW. But as my notes above illustrate, Tier 3 offers as much as you are prepared to give. If you take the time to practice RoP then you will reap the rewards. If you do not have the time to do practice raiding drills then go for IF.

Comment by eier

Don't set yourself on fire... oh wait

Comment by Bic55

Currently, my toon is a fire mage. Combustion is at 2 minute cooldown. I know of another mage at 1.5 minutes cooldown. How do I get the 30 seconds removed?

Comment by Skullhawk13

Formerly this ability converted 100% of your crit into mastery, but it's been nerfed to only half. Which Crit is still one of the best stats for fire mages, it's no longer quite as great. On a cosmetic note though, the talent now has you basically become a fire elemental, totally engulfed in flames, and looks REALLY cool.

Comment by Vahdis

Fun easter egg, while Combustion is active the mage and nearby players can use the mage as a cooking fire.

Credit to Thyst on twitter.

Links WeakAuras Export

Combustion

Combustion

Talent

10% of base mana

Instant	2 min cooldown

Engulfs you in flames for 10 sec, increasing your spells' critical strike chance by 100%. Castable while casting other spells.

Fire
When you activate Combustion, you gain 2% Critical Strike damage, and up to 4 nearby allies gain 1% Critical Strike for 10 sec.

Buff

Combustion

Critical Strike chance of your spells increased by 100%.
[Mastery increased by 0.]
10 seconds remaining

Spell Details

Duration

10 seconds

School

Fire

Mechanic

n/a

Dispel type

n/a

GCD category

n/a

Cost

10% of base mana

Range

0 yards (Self)

Cast time

Instant

Cooldown

2 minutes

GCD

0 seconds

Effect #1

Apply Aura: Modifies Critical Strike Chance (7)
Value: 100
PVP Multiplier: 1
Affected Spells:

	Cone of Cold	Frost Nova	Arcane Explosion
	Fire Blast	Scorch	Pyroblast
	Dragon's Breath	Fire Blast	Nether Tempest
	Supernova	Blast Wave	Ice Nova
	Ray of Frost	Phoenix Flames	Arcane Surge
	Frostfire Bolt	Volatile Magic	Fireball
Show 8 More
	Flamestrike	Arcane Blast	Arcane Barrage
	Radiant Spark	Shifting Power	Fire Juggler
	Tormenting Backlash	Frigid Pulse

Effect #2

Apply Aura: Mod Rating ()
PVP Multiplier: 1

Effect #3

Apply Aura: Periodic Dummy
Interval: 500 milliseconds
PVP Multiplier: 1

Effect #4

Apply Aura: Modifies Damage/Healing Done
PVP Multiplier: 1
Affected Spells:

	Fire Blast		Scorch		Pyroblast
	Fire Blast		Frostfire Bolt		Fireball

Effect #5

Apply Aura: Modifies Damage/Healing Done
PVP Multiplier: 1
Affected Spells:

	Flamestrike

Effect #6

Apply Aura: Modifies Damage/Healing Done
PVP Multiplier: 1
Affected Spells:

	Living Bomb		Living Bomb		Living Bomb
	Living Bomb

Flags

Cannot be used while shapeshifted
Do Not Sheath
Allow Cast While Casting
Starts ticking at aura application
Aura Points On Client
Allow Cast While Channeling
Reset cooldown upon ending an encounter
Allow Class Ability Procs
Nameplate Personal Buffs/Debuffs

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Augmentation Evoker Support Buffs Guide Fire Mage Best Covenant Best Fire Mage Legendaries Fire Mage Talent Tree Build Fire Mage DPS Guide Fire Mage PvP Guide Fire Mage Rotation Guide Legion Mage Class Changes Night Fae Fire Mage Guide

Combustion

Buff

Spell Details

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