Playstyle & Rotation
All rotations are for the builds that I have provided in this guide. There are a lot of variables on openers and rotations depending on what talents you play, so for user readability I will be writing out the rotations/openers for the current best and most optimal builds.
Breath of Sindragosa Opener
- Obliterate & Raise Dead
- Empower Rune Weapon
- Pillar of Frost, Breath of Sindragosa & Frostwyrm’s Fury
- On use trinket (Araz’s Ritual Forge / Unyielding Netherprism)
Then follow the “General Single Target Priority List” below.
Shattering Blade Opener:
- Frostwyrm’s Fury & Empower Rune Weapon
- Pillar of Frost, Raise Dead & On use trinket (Araz’s Ritual Forge / Unyielding Netherprism)
Then follow the “General Single Target Priority List” below.
General Single Target Priority List
- Frostwyrm’s Fury
- Pillar of Frost
- Empower Rune Weapon - if you have 2 charges available or if Breath of Sindragosa is off cooldown and you do not have 60 runic power
- Breath of Sindragosa (If Breath of Sindragosa talented)
- On use trinket (Araz’s Ritual Forge / Unyielding Netherprism)
- Obliterate - if you have 2 stacks of Killing Machine
- Frost Strike - if you have =<1 Rune or are at 5 stacks of Razorice (if Shattering Blade talented)
- Obliterate - if you have Killing Machine
- Howling Blast - if you have a Rime proc
- Frost Strike - if you have 75+ Runic Power or Pillar of Frost is active
- Empower Rune Weapon - if you have <35 runic power
- Obliterate
- Frost Strike
- Raise Dead
Breath of Sindragosa Opener (3+ Targets)
- Frostscythe & Raise Dead
- Empower Rune Weapon
- Pillar of Frost, Breath of Sindragosa & Frostwyrm’s Fury
- On use trinket (Araz’s Ritual Forge / Unyielding Netherprism)
Then follow the “General Multi-Target Priority List” below.
Shattering Blade Opener (3+ Targets):
- Empower Rune Weapon
- Pillar of Frost, Raise Dead, Frostwyrm’s Fury
- On use trinket (Araz’s Ritual Forge / Unyielding Netherprism)
Then follow the “General Multi-Target Priority List” below.
General Multi-Target Priority List (3+ Targets)
- Frostwyrm’s Fury
- Pillar of Frost
- Empower Rune Weapon - if you have 2 charges available or if Breath of Sindragosa is off cooldown and you do not have 60 runic power
- Breath of Sindragosa (If Breath of Sindragosa talented)
- On use trinket (Araz’s Ritual Forge / Unyielding Netherprism)
- Frost Strike - If Frostbane active
- Frostscythe - if you have Killing Machine
- Howling Blast - if you have a Rime proc
- Glacial Advance - if you have 75+ Runic Power or Pillar of Frost is active
- Frostscythe
- Frost Strike
- Raise Dead
Breath of Sindragosa Opener
- Obliterate & Raise Dead
- Empower Rune Weapon
- Pillar of Frost, Breath of Sindragosa & On use trinket (Araz’s Ritual Forge / Unyielding Netherprism)
- Reaper’s Mark
Then follow the “General Single Target Priority List” below.
Shattering Blade Opener:
- Empower Rune Weapon
- Pillar of Frost, Raise Dead & On use trinket (Araz’s Ritual Forge / Unyielding Netherprism)
- Reaper’s Mark
Then follow the “General Single Target Priority List” below.
General Single Target Priority List
- Pillar of Frost
- Empower Rune Weapon - if you have 2 charges available or if Breath of Sindragosa is off cooldown and you do not have 60 runic power
- Breath of Sindragosa (If Breath of Sindragosa talented)
- On use trinket (Araz’s Ritual Forge / Unyielding Netherprism)
- Reaper’s Mark
- Obliterate - if you have 2 stacks of Killing Machine
- Frost Strike - if you have =< 1 Rune or are at 5 stacks of Razorice (if Shattering Blade talented)
- Obliterate - if you have Killing Machine
- Howling Blast - if you have a Rime proc
- Frost Strike - if you have 75+ Runic Power or Pillar of Frost is active
- Empower Rune Weapon - if you have <35 runic power
- Obliterate
- Frost Strike
- Raise Dead
Breath of Sindragosa Opener (3+ Targets)
- Frostscythe & Raise Dead
- Empower Rune Weapon
- Pillar of Frost, Breath of Sindragosa & On use trinket (Araz’s Ritual Forge / Unyielding Netherprism)
- Reaper’s Mark
Then follow the “General Multi-Target Priority List” below.
Shattering Blade Opener (3+ Targets):
- Empower Rune Weapon
- Pillar of Frost, Raise Dead, & On use trinket (Araz’s Ritual Forge / Unyielding Netherprism)
- Reaper’s Mark
Then follow the “General Multi-Target Priority List” below.
General Multi-Target Priority List (3+ Targets)
- Frostwyrm’s Fury
- Pillar of Frost
- Empower Rune Weapon - if you have 2 charges available or if Breath of Sindragosa is off cooldown and you do not have 60 runic power
- Breath of Sindragosa (If Breath of Sindragosa talented)
- On use trinket (Araz’s Ritual Forge / Unyielding Netherprism)
- Reaper’s Mark
- Frost Strike - If Frostbane active
- Frostscythe - if you have Killing Machine
- Howling Blast - if you have a Rime proc
- Glacial Advance - if you have 75+ Runic Power or Pillar of Frost is active
- Frostscythe
- Frost Strike
- Raise Dead
Basic Gameplay Loop
The foundations of Frost revolve around the two core resources of Death Knight, runes and runic power. Spending runes and using Empower Rune Weapon will generate runic power, and spending runic power will have a chance to replenish your runes. Runes are mainly spent on Obliterate, Remorseless Winter, Reaper’s Mark, Soul Reaper, Death and Decay and Frostscythe. Obliterate & Frostscythe will be the two main abilities you use to spend runes, as they have no cooldown and are greatly empowered by Killing Machine.
Killing Machine is a random proc that is triggered by auto-attack crits or via the talent Obliteration. Killing Machine procs are a vital part of Frost's damage and consuming it triggers multiple talents/effects such as Arctic Assault, Murderous Efficiency, Bonegrinder, Enduring Strength, etc. Due to it mainly proccing from auto-attack crits melee uptime is vital to Frost's throughput.
Runic power is a resource that is spent on Frost Strike, Glacial Advance and Death Strike (for self healing). Each point of runic power spent has a 1.8% chance to generate a rune via Runic Empowerment. For example, Frost Strike/Glacial Advance costs 35 runic power, so it has a 63% chance to generate a rune with each use.
Outside of this cycle of resources, your Frost Strike/Glacial Advance casts will have a chance to generate a Rime proc, which empowers Howling Blast to deal additional damage and not cost any runes. Howling Blast itself is not worth using as it doesn’t do enough to justify the 1 rune cost, so you will only want to use Howling Blast when you have a Rime proc. Rime procs are important because Howling Blast is the main way which you will apply Frost Fever to your enemies, which can trigger Brittle and has a chance to generate 5 runic power when it deals damage. It will also reduce the cooldown of your Empower Rune Weapon by 6 seconds with the talent Frostbound Will.
Frost’s gameplay in multi-target scenarios (3+ targets) remains mostly the same, except you will want to use Frostscythe instead of Obliterate to spend runes, and Glacial Advance instead of Frost Strike to spend Runic Power. The only time you will ever want to use Frost Strike in multi-target scenarios is when you have a Frostbane proc. You will also put a lot more emphasis on sustaining your Remorseless Winter via Gathering Storm.
Cooldown Usage
Generally speaking, cooldowns are best used as frequently as possible and with other cooldowns/buffs. A big key to doing good damage across all classes is to stack as many buffs and cooldowns together as possible, so they are all doing their maximum output when used. With that in mind, let's go over Frost’s cooldowns, what they do and how you will want to use them.
Pillar of Frost
Most of the time you always want to use Pillar of Frost on cooldown. If you are playing Obliteration then make sure to pool 3-4 Runes before Pillar of Frost, so you are not rune starved during your Obliteration window. There are times during a boss encounter where you might delay using Pillar of Frost to get the most value out of the cooldown, which is fine so long as you don’t lose an overall use during the encounter.
You want to use Remorseless Winter (if you do not have Frozen Dominion talented) and Reaper’s Mark before you start your Pillar of Frost window. During Obliteration windows you want as many globals as possible in your Pillar of Frost to consume and generate Killing Machine procs with Obliterate/Frostscythe and Frost Strike/Glacial Advance. Using abilities like Remorseless Winter and Reaper’s Mark (which don’t trigger Killing Machine procs) will waste potential Killing Machine consumption and generation during Pillar of Frost.
Empower Rune Weapon
You generally use your Empower Rune Weapon when you are low on runic power, or when you are about to reach 2 stacks. It is important to note that it also generates a Killing Machine proc, so it can also be an effective way to stop your Bonegrinder stacks from dropping.
Empower Rune Weapon is also not on the global cooldown, so you can use it at any time you need to.
Reaper’s Mark
Reaper’s Mark should always be used on cooldown, and ideally alongside Pillar of Frost. Both are perfectly synced when you are using Icecap and Painful Death. They are also synced when you use Swift End and do not spec into Icecap. You should use Reaper’s Mark just before Pillar of Frost, because it’s better to have more globals for other abilities such as Obliterate and Frost Strike.
Frostwrym’s Fury
The use of this cooldown differs depending on which hero talents you are using.
Riders of the Apocalypse
In single target scenarios, always use Frostwyrm’s Fury right BEFORE Pillar of Frost so that your Riders are active as soon as you start your Pillar of Frost window. In multi-target, you want to use Frostwyrm’s Fury AFTER Pillar of Frost, because Frostwyrm’s Fury does a lot of damage when hitting multiple enemies, so it’s worth giving up the first global during Pillar of Frost.
Deathbringer
Frostwyrm’s Fury use should always be used during your Pillar of Frost so it can benefit from the strength buff. For the best possible result, it is worth waiting for a Rune of the Fallen Crusader proc during your Pillar of Frost before using it. However, if you get very unlucky and don’t get a Fallen Crusader proc during Pillar of Frost, then use Frostwyrm’s Fury 2 seconds before Pillar of Frost ends.
Breath of Sindragosa
You always want to use Breath of Sindragosa in conjunction with Pillar of Frost. As long as you are able to generate and spend Killing Machine/Rime procs, you will be able to extend it for the full duration of your Pillar of Frost and some time after that too.
Important Buffs
Icy Talons
This is very important to maintain throughout an encounter, not only for auto attack damage but also for triggering Killing Machine, Icy Death Torrent and The Long Winter from critting with auto attacks. You spend Runic Power through Frost Strike, Glacial Advance or Death Strike (for self healing) to sustain Icy Talons.
Razorice
Most of your damage is Frost damage, which makes Razorice a very important debuff to manage. Razorice is applied by Rune of Razorice, Glacial Advance and Rime procs (when you have the talent Avalanche) stacking up to 5 times.
You will want to always maintain 5 stacks of Razorice as it’s a major throughput loss if you drop Razorice and then have to rebuild back up to 5 stacks again. Breath of Sindragosa builds typically don't use Rune of Razorice either, so getting back up to 5 stacks will take a few Killing Machine procs (Razorice is applied via Arctic Assault) or Rime procs if Avalanche is talented. You will naturally sustain Razorice stacks on your target(s) as long as you have uptime.
If you are playing with Shattering Blade your Razorice management changes completely, due to your Frost Strikes clearing your Razorice once it reaches 5 stacks. When you are playing with Shattering Blade, you want to have Rune of Razorice on your main-hand weapon to increase the rate at which you apply Razorice to your target, getting as much uptime on Razorice as possible while still getting value out of Shattering Blade.
Bonegrinder
You will have an abundance of Killing Machine procs to build and trigger Bonegrinder, but sometimes you might not get a Killing Machine proc for a while and might be close to dropping your Bonegrinder, which can be bad if you are about to use Pillar of Frost. To counteract this you can use Empower Rune Weapon to generate a Killing Machine proc to keep it going.
You ideally want to consume your 5 stacks of Bonegrinder when you are in your cooldowns, or when you are about to use your cooldowns as this is when you are doing the most damage, so you naturally want to trigger this additional 20% damage buff during your highest damage windows.
Gathering Storm
It can be difficult to sustain Gathering Storm outside of Bloodlust because it does take a lot of Runes to keep ramping up Remorseless Winter with Gathering Storm. However, you should always strive to maintain as many stacks and uptime on Gathering Storm as possible, especially in multi-target scenarios.
Defensive Cooldowns / Utility
Anti-Magic Shell
This is one of the best abilities in a Death Knight's toolkit. It makes you immune to many magic auras and debuffs and prevents heavy amounts of magic damage when used correctly. If you pre-use Anti-Magic Shell before walking over a magic-based floor effect, it will make you completely immune to the damage and any additional effects it may apply to you while walking over it. It's important to note that using Anti-Magic Shell only prevents the application of magic debuffs and does not remove them once they have already been applied to you. So make sure you use Anti-Magic Shell before a debuff is applied. When absorbing magic damage with this ability, you also gain Runic Power, which can also be used offensively for a slight DPS gain. When in magic damage-based fights, Anti-Magic Shell is insanely strong, and taking the talent Anti-Magic Barrier allows you to use it more frequently, as well as increasing its duration and absorb amount.
Icebound Fortitude
This is your main heavy mitigation ability that makes you immune to stun effects. This can be very useful in encounters that have stun mechanics. It has a 2 minute cooldown, so make sure to plan out your uses to get the most value out of it.
Anti-Magic Zone
This is a raid/party defensive cooldown for magic damage. It loses value based on how many allies are within it, so it will not be as strong in raids but it's worth using along with some other healing cooldowns as an extra safety measure. Its cooldown can also be reduced by using the talent Assimilation.
Lichborne
On its own, it's only beneficial in niche situations where you will be Feared, Charmed, or put to Sleep. However, when using the talent Unholy Endurance it becomes a valuable extra mitigation ability that you will want to use in high-damage encounters. Leech in general scales a lot better in multi-target scenarios compared to single target, but it’s still very good to have either way.
Death Grip
Death Grip is an iconic Death Knight ability that makes them stand out from other classes in the game. No other class can grip enemies into specific positions, making Death Knight very strong in add control encounters. Make sure to always keep an eye out for enemies outside of the rest and grip them in so your group and cleave them down with the rest. It's also an effective way to interrupt a target from casting, even if they are uninterruptible, as it counts as a form of CC and not an interrupt.
Death's Advance
A Death Knight's main weakness is mobility. Death's Advance usage is a key part of what makes a good Death Knight player. It's your only mobility spell if you are not talented into Wraith Walk, so it is crucial to use it at the right time. It also makes you immune to knockback effects which can be incredibly strong in certain encounters. It can also be greatly empowered by the Riders of the Apocalypse talent Death Charge, which increases your movement speed by 100% instead of 35% as well as all of the other benefits of Death's Advance, so with this talent you are one of the fastest classes (mobility wise) in the game.
Raise Ally
Along with Druids and Warlocks, Death Knights are one of the only classes in the game that can resurrect an ally during combat. Raise Ally is an instant cast, and costs less resources compared to other classes, so it’s generally the best combat res if you need to get somebody back into the fight ASAP.
Death Strike
After taking a heavy hit of damage, you can heal a significant amount after using Death Strike, making your healer's life a lot easier and maybe proccing Runic Empowerment afterwards. Use this ability after taking a large amount of damage if you are out of Refreshing Healing Potions and Healthstones.
Chains of Ice
Another helpful tool for Death Knights to use is Chains of Ice, which is very strong when an add needs to be slowed or kited by your tank. However, it does come at the cost of a rune, so using this too much will often leave you rune starved. Make sure only to use it when it's needed or called for. If you have multiple targets that need to be slowed simultaneously, consider using the talent Grip of the Dead instead of applying Chains of Ice to multiple targets.