Battle resurrections went through another big change at the start of Warlords of Draenor. Instead of being limited to 1 battle rez for a 10 person raid and 3 for a 25 person raid, battle resurrections are now available on a charged based system. Your raid starts with one available battle rez and then after a few minutes an additional resurrection can be come available.
Battle Rez Charges
For each raid encounter, your team will always start with 1 battle rez, and will gain 1 additional battle rez charge every 90/x minutes, where x is the number of people participating in the encounter.
For example, a 10 person raid will earn a charge every 9 minutes (90/10 = 9). Since most encounters are less than 10 minutes in duration in LFR, Normal, or Heroic raid, you will probably have only the starting battle rez available to your team.
During a flex encounter with more raiders, such as 15 people, the raid will earn a charge every 6 minutes (90/15 = 6). It’s feasible that a raid encounter on LFR, Normal, or Heroic mode could last 6 minutes, in which case you would start with a single battle rez, and then after 6 minutes of fighting the raid boss, a second charge will be earned by your team.
During an encounter with 20 raiders, the raid will earn a charge every 4.5 minutes (90/20 = 4.5). During a 10 minute encounter (something typically seen in high difficulty Mythic raids), the team will earn a total of three battle resurrections through out the duration.
You do not need to use a charge in order to get a second charge. The timer starts ticking the second an encounter is pulled. In a 20 person raid, the second battle rez is earned 4.5 minutes into the encounter, the third 9 minutes into the encounter, etc.
A battle rez only counts against the raid’s charges when it has been accepted by the target player. If the target player declines the battle rez, the raid will NOT lose the charge and the caster’s battle rez will NOT go on cooldown. If a battle rez is pending on a player (meaning they have neither accepted or declined) the caster’s battle rez will be unavailable until the target accepts, or it will be refunded if the target declines. This last bit may not seem important, but if you having a pending resurrection and someone potentially more valuable to your raid (i.e. a tank) dies, you have the option to decline the battle rez so that someone else may use it.
The Battle Resurrection Cooldown
The tooltip of a typical battle rez says the spell has a 10 minute cooldown. This is not the whole picture. If you are in a dungeon, participating in a group quest, or you are just casting the battle rez on someone while soloing out in the world, your spell will indeed have a 10 minute cooldown. However…
Raid encounters change everything. For simplicity, I’m going to use a 20 person raid team in these example (meaning the raid will earn a battle rez charge every 4.5 minutes).
All battle rez casters will have their battle rez go on and off cooldown at the same time. If a Druid casts Rebirth 2 minutes into the fight, the raid will then have 0 battle rez charges remaining and all Warlocks, Druids, Death Knights, and Hunters in the raid will have their battle rez spell go on cooldown. All caster’s battle rezzes will go on cooldown if another member of the raid team accepts a battle rez and the raid has no additional charges.
If a caster’s battle rez has gone on cooldown, the length of this cooldown is the same as the time remaining until the next charge. In a 20 person raid, the caster’s battle rez cooldown has a maximum of 4.5 minutes. If a caster rezzes someone 3 minutes into the encounter, the cooldown for every battle rez caster in the raid will be 1.5 minutes long since the team’s second battle rez becomes available at that time. If a caster uses the first battle rez on someone 5 minutes into the encounter, the raid will have earned a second charge and no one’s battle rez spell will go on cooldown. If the raid team has additional charges, all battle rez casters will NOT be on cooldown, even the caster.
Effectively, in a 15 minute encounter with 20 raiders, a sole Druid can cast all three Rebirths. She could cast them once every 4.5 minutes, or, if raiders have died only after 13.5 minutes have elapsed, she could cast all three in quick succession.
No matter how much time is left on a caster’s battle rez cooldown, it will reset at the end of a boss encounter (killing the boss or wiping to the boss). However, if a battle rez was used on the trash leading up to a raid boss, that specific caster will have to wait for the full 10 minute cooldown before being able to cast it, even if the raid has pulled a boss and the raid has charges available. In this scenario, other battle rez casters will still be able to use theirs normally.
Tracking the Shared Battle Rez Charges
The best way to manage your raids shared battle rez charges is to use a simple tracking addon. Personally, I find oRA3 to track encounter battle resurrections very effectively. The oRA3 addon does a lot of raid leader related things (tracking healer and dps cooldown usage, making it easier to invite many people at once for a raid, etc), but for battle rezzes specifically it puts a timer and a counter on my screen, which tells me at a quick glance how many battle rezzes are currently available in this encounter and how long until the next one will be available. It also shows who rezzed who throughout the encounter.
Since I’ve been using oRA3 as a general raid addon for years, I haven’t searched out other options for battle rez tracking. If anyone has a suggestion for a solid, standalone, battle rez tracking addon I’d love to hear about it!