Headed South

 Headed South  is a Cataclysm heroic dungeon achievement needed for the Glory of the Cataclysm Hero achievement, rewarding the.

Strategy
This is among the hardest achievements in this series. It is furthermore an individual achievement, and must be performed by each player that wishes to get credit.

The Lightning Charge debuff is gained by being in melee range of the when it dies. In order to complete the achievement, the player must have three stacks of the debuff, requiring that it be cast by all three Servants prior to killing Siamat. The debuff remains on the player for 30 seconds, meaning that it must be refreshed or Siamat killed within 30 seconds of the previous cast. Each stack of the debuff increases damage taken by 33% and damage dealt by 10%, adding up to 100% increased damage taken and 30% damage dealt by the third stack.

There are two general strategies to this achievement, depending on whether healing throughput or endurance is the bigger concern. In both cases it is important that the s be properly dealt with. When these adds die, they create a wandering storm cloud that does a substantial amount of damage and must be avoided. A DPS or healer with a short-cooldown spell interrupt must pull each that spawns to the very edge of the platform, as far from the party as possible. From there, either a DPS can burn them down or they can be left to die. They gradually lose life on their own, so they need not be killed manually, but killing them reduces the amount of damage taken by the party, which is a significant concern in this fight.

Healing Throughput Method
The proper method of performing this achievement requires intensive healing due to the large damage increase from the debuff, and may be more than a single healer can handle. If this is the case, an off-healer e.g. a DPS shaman with healing rain can help some. If healing proves too difficult, the second method may be preferable.

This method relies on killing the Servants one at a time, killing the next before the debuff from the previous expires; note that it takes several seconds for each to cast the debuff on death, so the party should kill each with at least 5 seconds left on the previous stack. The third Servant must be killed first, as that will cause Siamat's shield to drop so the party can do full damage, but the other two may then be killed in any order. After the shield falls and Siamat finishes throwing the party around, heroism and offensive cooldowns should be used to burn him down as quickly as possible, but don't forget to kill the other two Servants as necessary; defensive cooldowns may also prove useful to reduce the damage taken by the party.

Endurance Method
The second method involves nearly killing Siamat while his shield is still up, while there is relatively little damage to the party. In this method, the tank holds on to the Servants as they spawn, while the DPS focuses on Siamat; the tank may damage the Servants over time, but must not kill them until the very end. Because Siamat's shield reduces damage taken by 90%, this will be a very long fight (10-15 minutes). As such, it is important that everyone do as much as they can to minimize the amount of healing necessary, so as not to exhaust the healer's mana, and the healer should use their mana cooldowns as often as possible to keep their mana up; ranged DPS should spread out to avoid chain lightning, and everyone must avoid anything cast on the ground.

Once Siamat's life has been reduced to a manageable amount, the three Servants are killed at once, saving the third for last. The party will then have 15 seconds to kill him (30 for hunters that can deal ranged damage while being thrown around by Siamat), and all manner of cooldowns should be used when the party lands. As the entire party will be taking double damage, this may prove more of a problem than the time limit. The proper time to kill the Servants depends on how much damage the group can do and how long they can live with the large damage taken - typically when Siamat is between 100k and 500k life.

Note that depending on luck it may take Siamat several seconds to put his shield up at the beginning of the fight, so offensive cooldowns may be used here to get a short burst of damage. Due to the extreme length of the fight, heroism may usually be used twice, so it is acceptable to use it here.