Frost PVE: 5.2
So we're back at the beginning of a new expansion. Frost is not only viable, but competitive.
To anyone who is used to Cata style frost, we lost a fair bit of our front loaded burst. Deep freeze no longer does damage, and cold snap only resets a handful of spells, none of them DPS. Alter time replaces this function somewhat, I'll expand on that in its section. Freeze no longer generates fingers of frost if the target is immune. We got a boosted base proc chance instead.
Basics and Playstyle
Level 90 talent
Frostfire bolt with brain freeze
Frostbolt to 3 stacks of debuff*
Ice lance with fingers of frost
This is your basic priority system. Pop icy veins, time warp, and trinkets as indicated by fight mecahnics and common sense. Alter time as indicated below.
Your chosen level 90 talent is worth a lot of damage. If it can be triggered before the pull, do it. Keep it up as much as possible. It helps your elemental's damage as well.
Frozen orb should be used on cooldown. It'll path roughly forward from you and slow down when it hits the first attackable target. The first impact will automatically grant you a fingers charge as well. It's also damned nice AOE, so try and aim it to maximize damage on as many targets as possible.
Your mage bomb of choice needs to be maintained, as it's your method to proc brain freeze. Both of the DoT style bombs can be refreshed during the time before their last tick without issue. Living bomb will automatically explode and give you the full DPS while taking advantage of the DoT refresh mechanic. Nether tempest is a bit harder, due to being a fraction of a second between ticks. Letting it fall off is a very minimal DPS loss, as is refreshing early.
Mirror image is worth a decent amount of damage, but doesn't proc anything, so it's the last of the non-direct damage spells.
Frostfire bolt with brain freeze up will let it benefit from both shatter and your mastery. It hits harder then ice lance and only has one charge, so takes precedence.
Frostbolt to 3 stacks of the debuff has been found to be ~400 DPS gain over using your ice lances at the beginning of a fight. *Honestly you could likely drop this conditional without noticing the difference for simplicity's sake.
Ice lance with fingers of frost allows ice lance to benefit from shatter and mastery, much like the brain freeze proc.
Frostbolt is your filler spell if the debuff is already up.
Frost uses frost armour. 7% haste beats out 3000 mastery and 5% crit.
This is a strange spell. When used, it takes a snapshot of your character's location, health, mana, buffs, and debuffs. You have 6 seconds to do anything short of dying, then it restores you to the snapshot's state. Use this in conjunction with time warp, icy veins, trinkets, even incanter's ward's damage buff. Anything you can squeeze more damage with. Be careful though, if you pop something during alter time, you'll lose it when it ends. You want to dump all your fingers of frost charges and brain freezes that you get ASAP.
Optimal use would be 2 charges of fingers of frost and a brain freeze proc with icy veins, and whatever else DPS buffs you've got. If you can't line it up with anything, use it on at least one fingers of frost and brain freeze. The extra damage you'll get out of those will almost always beat out an extra 6 seconds on something else. It's not hard to line it up though, do try to get some buffs in there as well.
Talents and Glyphs
Talents and glyphs both are now situational and likely to be changed on a per-fight basis for the most hardcore. We don't have to carry portal runes around anymore, so stock up on the reagent to do so. Learn the encounters and change your choices as you see fit. I won't go into which is used on what fight for what reasons.
Level 15: Presence of mind is a single target, stationary, DPS boost. If you're moving, then it's probably not the talent of choice. Ice floes gives you two frostbolts while moving, and if you cast it in the last 0.5 seconds of a frostbolt cast, it won't consume a charge. Blazing speed can potentially get you where you need to go, if blink is on CD.
Level 30: Temporal shield will heal off any non-fatal damage, or fatal with cauterize. It's off the GCD. It's meant for large hits every few dozen seconds, not sustained damage. Ice barrier holds more damage, but costs the GCD. It's better for large single hits often enough that you can't rely on cauterize or greater invisibility, but you need the extra HP to survive it. Flameglow is our only real passive damage reduction skill, and really shines on many small hits. A lot of people underestimate it, but it's quite powerful.
Level 45: Add control on ring of frost, an extra targetted nova on ice ward, or a silence tied to a freeze on frostjaw. Frostjaw's silence is actually tied to the freeze debuff; it's honestly best used as an interrupt since it breaks on damage. Ice warding the tank is a good option for timing shatters with frost bomb. Your call.
Level 60: Cauterize is capped at preventing 200% of your total health. It takes 300% of your health to kill you in one hit. You can't solo soak some things that aren't meant to be, passively. You can still do it with greater invisibility, but that costs a GCD with the trade that it's only 90 seconds instead of 120 seconds cooldown. Consider cold snap for scenarios or something where you'll need self healing more than eating raid wipe mechanics. Cold snap essentially allows you 2 ice blocks in close succession, then a 3 minute cooldown ice block instead of 5.
Level 75: Changes depending on encounter needs. At a decent amount of haste, nether tempest is likely your best choice. Frost bomb can be a great choice, especially on many adds close together. I ran my gold challenge modes with frost bomb, freezing adds as the explosion was about to go off.
Living bomb should never be used, as it stands. We stack haste. Comparing NT to LB, NT is 100% damage in DoT form. Haste will speed it up, increasing 100% of the damage. LB is 50% DoT and 50% explosion, at 0 haste. When you add haste, you gain more ticks, but not more explosion damage, effectively halfing the benefit haste gives to your bomb.
With regards to brain freeze, nether tempest is 9% per tick, living bomb is 25% per tick but not on the explosion, and frost bomb is 100%. Please remember the rules of probability when you're taking these. You can, and will, get screwed on procs. You will also have amazing streaks of luck.
Level 90: Also encounter dependant. Invocation is probably the general winner for raiding though. Haste is our best stat, and it only makes invocation better. If you're able to stand and burn for the entire minute, rune of power will become slightly better DPS than invocation. You're going to want incanter's ward for anything with steady AOE damage, though. If you can keep that 30% damage bonus up, and have it up on cooldown, that's the clear winner.
Glyphs are fairly self explanitory. Read them. Take what's appropriate for the situation. Here's a few odd mechanics you should be aware of on some glyphs.
Glyph of water elemenetal has some buggy interactions with multiple targets. There's a chance it'll change targets on you, and not obey an attack command to change to yours, regardless of if on assist or defensive. Blizz knows and is working on a fix, but it's not really high priority. If you don't need your elemental by your side and it's a multi target fight, consider not using it and controlling it via defensive stance and move to command. The glyph also makes your elemental bigger.
Glyph of icy veins exists so we don't GCD cap our instant spells while under it. It's functionally the same, you're trading 20% faster damage for 20% more damage. The difference is, you don't gain faster bomb speeds. To make up for this, it has a hidden +20% modifier on fingers of frost proc chance while active. Take this glyph when you're over 50% haste, raid buffed, with icy veins up. Remember: don't stack IV with time warp while unglyphed, but do stack it when glyphed.
To that end, Nathyiel has compiled a list of various points where this point is hit in a raid with 5% haste:
Glyph of evocation will proc on heal effects, but not while using rune of power.
Intellect > hit/expertise > haste > crit to 28% > mastery > more crit
OR at higher gear levels:
Hit/expertise > haste > int > crit to ~23% > mastery
Haste can be better than int this tier. RPPM's haste scaling tends to push 2 haste above 1 int, and you will start gemming it. Sim yourself, find out. Section near the bottom on how to do that.
Hit cap is 15%. Expertise now grants spell hit, so if you need extra reforges, or a red gem with hit, remember this. Racial bonuses for expertise do exist, make sure to account for this. It's a free 1% hit if you're using a matching weapon.
Haste is our best non-hit secondary stat. You cast faster, your DoTs tick faster, you gain procs faster.
Crit cap is 28% raid buffed. This includes the 5% crit buff from arcane brilliance. Shatter is crit percent*2+50%. The math behind this is (((28-3)*2)+50)=100. You lose 1% crit against any target for every level higher than you are, before shatter.
Mastery is where the remainder of your stat budget goes. It increases ice lance and frostfire bolt damage when under their respective buffs, as well as the water elemental's damage. Mastery is not better than haste, though. Haste gives you more chances to use mastery. Haste is better.
Haste is also better than crit, even before shatter cap. The reason behind this is that it speeds the elemental's cast time, reduces the GCD, makes our bombs tick faster, and it reduces the cast time of evocation.
Please learn how to simulate your character. It will allow you to not need to ask opinions on every little upgrade you get, and allows you to find out your own personal stat weights. A good video tutorial on how to do this is found here. A text tutorial from ages past here. I don't know why it was knocked off of sticky, honestly. It's still relevant.
The current meta gem to use is burning primal diamond. This is +216 int and +3% damage when you crit. There is no argument and no contest for any other meta gem against this, outside of the legendary meta gem from 5.2. As of writing, though, that's a long ways away.
Once you have an RPPM trinket, haste starts to pull ahead of int. Gem accordingly.
Water Elemental Sound
Should you get sick of the water elemental bubbling sound, as I have, simply go into your WoW's Data folder, create a folder called Sound. Inside that, create a folder called Creature, then another inside that called WaterElemental. Now create a blank .wav in that folder and call it WaterElementalLoop.ogg, capitalization is important on these folders and the file. Make sure you change the .wav to .ogg.
If you guys see any issues or have any questions, feel free to post. I did write most of this at 3 AM or later, even though it was mostly an edit in place of the old one.
Credit for frost mage rotation picture: Akraen