The Intermission tactic, or "cheese" tactic involves deliberately failing to trigger Phase 2, skipping many difficult mechanics. It requires 10-15 highly geared players, and there are a few non-standard techniques that need to be used.
As with all fights:
This tactic involves not interrupting her at any point in Intermission. If you have an itchy trigger finger for casts, unbind your interrupt.
Timewarp, heroism or other similar effects must also not be cast in the usual way. If they are, she will iceblock to counter this, and effectively ruin the attempt.
She does not respond to the very specific timewarp like cast of the mallet of thunderous skins. Do not use this randomly or on pull. Use it as per the tactic below. Only one person will be assigned to this, so if it is not you, please do not cast it. As above, if you have are likely to accidentally cast it, unbind this.
A cleaving spec or aoe spec is required.
The horde have separate racials, so ensure these are on your toolbar. Of particular note is the troll racial: Berserking, which offers a mini personal timewarp - great for the pull.
This is essentially a hard nuke through to 60%, avoiding some key mechanics that can affect the group badly.
There are 5 main mechanics for the entire raid to be aware of, in terms of priority:
Tanks should also:
Healers should:
Approach throughout phase 1:
Key mechanics to master:
Note that there are two visually similar effects going on. Do not get them confused! A swirly circle denotes avalanche (move), and solid lined circle denotes your radius for the freezing blood effect (stay close to others).
In terms of the DPS race, a mallet of thunderous skins will be used approximately 30s after the pull, so you may want to save cooldowns for this. Berserking can also be aligned to allow for a near constant opening burn of haste buffed damage output.
With good DPS, this will be a quick phase and she may not even cast ring of ice.
Before she transitions:
In this phase, you must find and kill adds, then locate Jaina.
At the start of the phase:
Note that the following still apply:
To complete this phase:
In this phase, you use predictable mechanics to form a safe space and cleave Jaina while freeing players.
At the start of the phase:
Note that the following still apply:
To complete this phase:
Once again:
As people are frozen solid, they form a protective barrier and this protects the rest of the raid who can quickly free them. Jaina has low overall health and can be calmly cleaved down well before her cast of howling winds completes.
Phase 1:
Intermission: