Freya is one of the boss encounters in Ulduar, similar to Sartharion when it comes to her hard mode. She is in the center of the valley in Ulduar, surrounded by three ancients which all have unique abilities that will make the fight harder if players choose not to kill them prior to fighting Freya.

Strategiess

The fight takes place in a lush oasis like valley inside Ulduar. There are three Elder boss-tree mobs you can choose to kill or not, apparently they are similar to Sartharion's hard mode if you choose not to kill them the fight gets considerably harder as each elder buffs Freya and her adds.

As you engage Freya, she will spawn multiple adds and start healing herself. She starts the fight with 150 stacks of a buff increasing healing on her by 4% (=600% at the beginning of the fight), a stack is removed everytime one of the adds she spawns is killed.

The fight hinges on controlling the adds. Having said that, add-killing is far more central to this fights strategy, as it is essential adds are killed not merely because they will wipe the raid if it is overwhelmed, but also because in order to beat Freya's healing versus damage dealt to her, the flower adds MUST be killed.

Phase 1

Every Minute, Waves Spawn:

Wave Type 1:

Storm Lasher, Ancient Water Elemental and Snaplasher. Each one has around 1 Million HP. They all need to be killed at the same time, otherwise about 12 seconds after death they resurrect. (reminiscent of the High Priest Thekal raid boss adds). Reduces Attuned to Nature Stacks by 10 each.

• Snaplasher: Has a debuff that when dealt damage, Increases damage by 1% and reduces speed on 10 man by 1%. Can stack up to 99 times, needs to be kited towards the end on 10 man. In 25 man they need to be picked up by an OT and start getting dpsed. The OT has to monitor the stacking buff and once it reaches ~50 all attacks must stop. If no damage is done (including dots) to the lasher for 5 seconds the debuff will reset. Warriors and Pally tanks will have a hard time with this due to their passive reactive damage, however once all damage has halted, a well timed stun can minimize this.

• Storm Lasher: Does AoE lighting damage around the mob (15 yards range), also does a chain lightning spell that hits 4 targets. Should be kept stunned and interrupted.

• Ancient Water Elemental: Does a frontal tidal burst, hits for around 8k. Needs to be faced away from the raid.

Wave Type 2:

• Detonating Lasher: They come in a waves of 12, spawning in a circle around Freya. Reduces Attuned to Nature by 2 stacks per mob. They have 26.5k HP, are untankable, and randomly run around. When one dies it does a short ranged AoE for 8k~ (around 15 yards).

Wave Type 3:

She will also spawn a bigger add at some point, an Ancient Protector with 1.9M HP. This is wave type 3. Just off-tank him and kill him to remove 25 stacks from Freya. He also uses Conservator's Grip to silence members of the raid, stay under the Healthy Mushrooms that spawn during this time in the zone to remove this debuff. Each mushroom lasts for around 15–20 seconds, would also appear that the newer the mushroom the quicker the debuff is removed. Reduces Attuned to Nature by 25.

• Conservator's Grip -- The grip of the Protector prevents attacking and casting spells.