In World of Warcraft: Cataclysm, we’ll be making lots of changes and additions to class talents and abilities across the board. In this preview, you’ll get an early look at some of the changes in store for the priest class, including a rundown of some of the new spells, abilities, and talents, as well as an overview of how the new Mastery system will work with the different talent specs.

New Priest Spells

Heal (available at level 16): While priests already have a spell called Heal, the existing version becomes obsolete at higher levels, which is something we intend to change in Cataclysm. Introduced at a low level, the “new” Heal spell will functionally work much like a down-ranked Greater Heal did in the past, adding more granularity to your direct-healing arsenal. If you need to heal someone a moderate amount and efficiency is an issue (making Flash Heal the incorrect spell for the job), then Heal is what you want to use. Heal is intended to be the priest’s go-to direct-healing spell unless they need something bigger (Greater Heal) or faster (Flash Heal). We will be following a similar philosophy with all the healing classes.

Mind Spike (level 81): Deals Shadowfrost damage and puts a debuff on the target that improves subsequent Mind Spike damage. The intent of Mind Spike is to fill a niche missing in Shadow DPS, though it may be occasionally useful for healers as well. Mind Spike provides a quick nuke to use in situations where the priest doesn’t have time to set up the normal rotation, such as when adds are dying too fast or you have to swap targets a lot. Spamming Mind Spike will do about as much damage as casting Mind Flay on a target afflicted with Shadow Word: Pain. The idea behind the debuff is that when you cast Mind Spike, we expect you to cast a lot of them; we don’t intend you to fit it into an already full Shadow rotation. It also provides Shadow with a spell to cast when locked out of the Shadow school. (School lockouts will no longer affect both schools for multi-school spells.) 1.5-second cast. 30-yard range. No cooldown.

Inner Will (level 83): Increases movement speed by 12% and reduces the mana cost of instant-cast spells by 10%. This buff will be exclusive with Inner Fire, meaning you can’t have both up at once. Inner Fire provides a spell power and Armor buff; Inner Will should be useful on a more situational basis.

Leap of Faith (level 85): Pull a party or raid member to your location. Leap of Faith (or “Life Grip”) is intended to give priests a tool to help rescue fellow players who have pulled aggro, are being focused on in PvP, or just can’t seem to get out of the fire in time. Instant. 30-yard range. 45-second cooldown.

Changes to Abilities and Mechanics

In addition to introducing new spells, we’re planning to make changes to some of the other abilities and mechanics you’re familiar with. This list and the summary of talent changes below it are by no means comprehensive, but they should give you a good sense of what we intend for each spec.

• All HoTs and DoTs will benefit from Haste and Crit innately. Hasted HoTs and DoTs will not have a shorter duration, just a shorter period in between ticks (meaning they will gain extra ticks to fill in the duration as appropriate).
• We want to bring back Shadow Word: Death as an “execute” — something you do when the target is at 25% health.
• While we want to keep the priest’s role as a well-rounded healer, we also want to make sure the class is a viable tank healer, which is something priests moved away from a little in Wrath of the Lich King. Greater Heal will probably be the tank-healing spell of choice, though we’ve also discussed giving Discipline a second shield so that they have a small shield to cast on lots of different targets, and a big, more expensive shield to cast on a tank or anyone else taking a ton of damage.
• Divine Spirit and Prayer of Spirit will be removed from the game. As Spirit will be the primary mana-regeneration stat, we don’t want it to vary as much between solo, small group, and raid play. Blessing of Kings and Mark of the Wild will not boost Spirit either.
• Mana will be a bigger consideration for all healers. We aren’t trying to make healing more painful; we’re trying to make it more fun. When the cost of a spell isn’t an issue, then casting the right spell for the job is less of an issue because you might as well just use your most powerful spell all of the time. We are, however, getting rid of the five-second rule, because we don’t want to encourage standing around doing nothing. We’re also going to cut back on the benefits of buffs such as Replenishment so priests (and all healers) don’t feel as penalized when those buffs aren’t available.

New Talents and Talent Changes

• We want to improve Discipline’s single-target healing capacity. One key is to make sure shielding isn’t always a more attractive option than healing.
• We want to improve Holy for PvP healing. One way to do this is to make sure that Heal’s throughput is similar between both specs.
• We want to improve Shadow for short fights and reduce its susceptibility to school lockouts.
• Discipline will finally be getting Power Word: Barrier as a talented ability. Think of it like a group Power Word: Shield.
• We want to make Holy a little bit more interesting to play. One new talent will push the Holy priest into an improved healing state when he or she casts Prayer of Healing, Heal, or Renew three times in a row. The empowered state varies depending on the heals cast.
• Since the Shadow tree has a lot of passive damage-boosting abilities — something we’re trying to avoid in Cataclysm — we will need to replace several of the tree’s talents. One idea is to play off of the new Shadow Orbs mechanic (see Mastery section below), possibly allowing you to consume an orb to increase damage from Mind Blast or reduce Mind Spike’s cast time.
• Misery will no longer affect spell Hit chance. We want players to be able to gear themselves around a Hit cap that isn’t variable depending on group composition.

Mastery Passive Talent Tree Bonuses

Discipline

• Healing
• Meditation
• Absorption

Absorption: Improves the strength of shields such as Power Word: Shield, Divine Aegis, and Power Word: Barrier.

Holy

• Healing
• Meditation
• Radiance

Radiance: Your direct heals add a small heal-over-time component to the target.

Shadow

• Spell damage
• Spell Crit
• Shadow Orbs

Shadow Orbs: Casting spells grants a chance for Shadow Orbs to be created that fly around you and increase your shadow damage. This will help lower-level characters feel more like “Shadow priests” before they obtain Shadowform.

We hope you enjoyed this preview, and we’re looking forward to hearing your initial thoughts and feedback on these additions and changes. Please keep in mind that this information represents a work in progress and is subject to change as development on Cataclysm continues.

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A few quick clarifications:

Neither Inner Fire nor Inner Will has charges. The decision is on which armor you want up at the time.

Preventing dot clipping is something we want to do in general. It obviously benefits Shadow priests just as much as warlocks.

The idea behind Mind Spike is that you can’t always settle into your normal, and high-ramp up rotation. It’s also useful when you have to move or get school locked.

The closest analogue to PW:B is the DK Anti-Magic Zone, but it has some important differences, such as a way to counter it in PvP (since it absorbs all damage, not just magical damage).

The idea behind the Holy “cast three in a row” talent (it’s called “Chakra”) is that we’ve always positioned Holy as a versatile healer. This talent lets you shift into different modes. If you need to be a tank healer, cast three single target heals and your single-target healing is now better. Cast three area heals, and you can be a temporarily specialized group healer. We’re going to try to play this mechanic up with a cool UI to try to get that “I’m almost in the zone” feel. We’ll let it apply to as many types of spells as we can, perhaps even Smite for those times when nobody’s taking damage.

We pulled Misery because we are pulling every group benefit that improves hit. It’s annoying to have to swap your gear in and out depending on who shows up for your group. In general we’re going to push even harder in Cataclysm for bringing people you like to play with, not bringing people who have awesome buffs. The answer to almost every question of “But why would they bring me?” should be “Because you know what the hell you’re doing.”

As many of you know from panels at last year’s BlizzCon and posts here on the forums since then, Cataclysm will bring about major changes to familiar character stats such as Intellect, Armor Penetration, Defense, and others, ultimately designed to make the effects of stats more easily understandable and make gear choices more interesting. As these changes will have a significant impact on how stats work and relate to one another, today we wanted to offer you a closer look at exactly what’s in store and explain some of the rationale before Cataclysm arrives.

The most obvious question these changes raise is “Why are stats being changed, and why now?” As the game has matured, we’ve run into increasingly complex issues with the current stat system. Many stats are inherently confusing, and the way they interrelate can feel convoluted. Attack Power, for example, currently translates to damage, but so does Armor Penetration. Defense provides five different statistical benefits of varying utility. Mana regeneration involves understanding multiple stats and rules and often ends up being irrelevant anyway. In addition, the difference between a “good stat” for a class and a “bad stat” can be extreme. Some casters want Haste but not Crit; hunters want Armor Penetration but not Haste. There are other overarching issues, as well, such as Intellect not being very exciting for casters despite it being a core stat — and these are just a few examples.

Our ultimate goal is make gear a more interesting (and less confusing) choice by making each stat valuable to more players. While the reasoning behind some of the following changes may be clear, we understand that you may have questions about some of the less obvious alterations, and we’ll do our best to answer any questions you may have here on the forums.

What You’ll See on Gear

Stamina – Because of the way we will be assigning Strength, Agility, and Intellect, non-plate wearers will end up with more Stamina than before. Health pools will be much closer between plate-wearers and other classes.

Spirit – Come Cataclysm, this stat should only be found on healing gear. Non-healing casters will have other systems in place to regenerate mana, and we are designing special solutions for Elemental shaman and Balance druids who often share gear with healers (more on this below). Raid buffs that currently boost Spirit (such as Blessing of Kings) will only boost the primary stats of Stamina, Strength, Agility, and Intellect. We are also likely changing the five-second rule and other quirks of the current regen system.

Intellect – Intellect will now grant Spell Power (more on this below). Intellect will also provide less mana than it currently does.

Haste – Haste will become more attractive for melee classes by allowing them to recover resources such as energy and runes more quickly. Our intention is for Haste to let you “do stuff” more often.

Block Rating – Block is being redesigned to scale better. Blocked attacks will simply hit for 30% less damage. Block rating will improve your chance to block, though overall block chances will be lower than they are today.

Parry – Parry no longer provides 100% avoidance and no longer speeds up attacks. Instead, when you parry an attack, it and the next attack will each hit for 50% damage (assuming they hit at all). In other words, Dodge is a chance to avoid 100% of the damage from one attack, Parry is a chance to avoid 50% of the damage from two attacks, and Block is a chance to avoid 30% of the damage from one attack.

Mastery – This is a new stat that will allow players to become better at whatever makes their chosen talent tree cool or unique. It’s directly tied to talents, so what you gain from improving this stat is entirely dependent upon your class and the talent specialization you choose. We’ll talk more about specific Mastery benefits in the future.

Armor – The way Armor mitigates damage is not changing, but the Armor stat has been rebalanced to mirror changes to the armor curve in Cataclysm. As a result, bonus Armor will go down slightly overall. We are also changing the mitigation difference among armor types so that plate doesn’t offer so much more protection than mail, leather, and cloth.

Resilience – This will only affect damage done by players and critical damage done by players. It will not impact crit chance, mana drains, or other such effects.

Strength, Agility, Hit Rating, Expertise, and Critical Strike Rating – These will all still appear on gear as well. Aside from situations mentioned elsewhere in this list, in general these will function similarly to how they do now, though the details — such as how much Hit Rating you might need to effectively combat high-level creatures (more on this below) — are likely to change.

Being Removed from Items

Attack Power – This stat will no longer be present on most items as a flat value, though it will still show up on some process. Strength and Agility, which will be present on items, will grant the appropriate amount of Attack Power (generally 2 Attack Power per point of Strength or Agility) depending upon which stat a particular class favors. Agility may provide less Crit than it currently does.

Spell Power – Spell Power is another stat that you’ll no longer see present on most items. Instead, as mentioned above, Intellect will grant Spell Power. One exception is that caster weapons will still have Spell Power. This allows us to make weapons proportionately more powerful for casters in the same way they are for melee classes.

Armor Penetration – This stat will no longer be present on items. Armor Penetration will still exist in talents and abilities.

Shield Block Value - This stat will no longer be present on items, since the amount blocked is always proportional to the amount of damage done. Talents and other effects might still modify the damage-reduction percentage from 30%, however.

Going Away Completely

MP5 – This stat will be removed from the game completely. Holy paladins and Restoration shaman will be redesigned to benefit from Spirit.

Defense – Defense is being removed from the game entirely. Tanking classes should expect to become uncrittable versus creatures just by shifting into Defensive Stance, Frost Presence, Bear Form, or by using Righteous Fury.

Spell Ranks – Spell ranks will cease to exist. All spells will have one rank and will scale appropriately with level. The levels at which you can learn certain spells are being changed in order to fill in some of the gaps, and we will be introducing some new spells to learn along the way as well.

Weapon Skill – This stat will be removed from the game completely. Classes will start with all the weapon skills they need to know and will not need to improve them.

What Else You Should Know

Combat ratings – All ratings will be much harder to “cap out” at maximum gear levels. Ratings will be steeper in Cataclysm, and creatures in later tiers of content will be harder to hit or crit, similar to how level-83 mobs are harder to hit or crit than level-80 mobs.

Reforging – While these changes will go a long way to making a wider variety of stats more attractive, we understand that sometimes you simply don’t want more Hit Rating on your gear or you’d rather have more Haste than more Crit. In Cataclysm, we are going to give players a way to replace stats on gear as part of the existing profession system. As a general rule of thumb, you’ll be able to convert one stat to 50% of another stat. While some conversions (like converting Stamina to Strength) won’t be permitted, the goal is to let you customize your gear more.

Gems – We are changing the gem colors of a few stats as a result of these adjustments. For example, Hit is likely to be blue instead of yellow. We’ll have more details on this in the future.

WoW Cataclysm Mage Changes Info

• Mages will no longer want spirit as it is now primarily a healer stat, intellect will now give spell power and this will become even more of an important stat than before
• There are plans to make Combustion more interesting for Mages in Wow Cataclysm
• Mage abilities and spell in Wow Cataclysm will be changed to account for the loss of Spirit. Example: Molten Spirit
• Night Elf Mages in WoW Cataclysm will be those Night Elfs that have been messing around with the Arcane when they shouldn’t have, thats the explanation they have given anyways.

WoW Cataclysm Paladin Changes Info

• Tauren Paladin would look very strange in an Armored Charger, and so Blizzard will have a new mount for them…a Holy Cow? Ok sorry that joke is getting old already.
• There is no plans to prevent Paladins from picking up cloth items
• Retribution Paladin in WoW Cataclysm will able to benefit from the new haste rating (increase rate of regeneration of runic power/focus/energy) 

WoW Cataclysm Priest Changes Info

• Shadow Priests in WoW Cataclysm will get a nuke without a cooldown
• Some Changes that might affect Priest’s spots in Raids,Groups: Shaman getting better AoE healing, all healing classes getting dispell magic and meditation like ability

WoW Cataclysm Death Knight Changes Info

• Blizzard feels like the Death Knight class is fine as it is right now. With all the special treatment they got last expansion, I wouldn’t expect too many changes for Death Knights in the WoW Cataclysm expansion.

This year around Blizzard decided not to have a seperate slide for each class at Blizzcon, and therefore we’re forced to just wait and see until the Cataclysm Beta is released. I wouldn’t take the lack of annoucements for Deathknights, Paladins, Mages, and Priests in WoW Cataclysm as a sign that Blizzard doesn’t have big plans for you. It could be the case that the changes are so big that they aren’t ready to announce them yet or haven’t been totally confirmed. This is what happens when we have WoW forums that react and whine to every little promise that Blizzard makes, they now have stopped announcing changes unless they are 110% certain. Anyways, so stay tuned dear Priest, Mage, Death Knight, and Paladin, for real changes in WoW Cataclysm will come in the near future.