Bastion of Twilight Boss Guide Strategy and Tactics

The Bastion of Twilight instance is the first raid instance of World of Warcraft: Cataclysm. This potent dungeon features 4 primary bosses and one optional boss (available on heroic mode only). This dungeon is meant to be entry-level. You can find it atop the Twilight Citadel, located in the southwest corner Twilight Highlands.

Bastion of Twilight Boss Tactics

• Halfus Wyrmbreaker
• Valiona and Theralion
• Ascendant Council
• Cho’gall
• Sinestra

Cho’Gall Boss Strategy Guide and Tactics

Cho’Gall is the 4th and final (excluding the optional boss) encounter of the Twilight Bastion. Cho’Gall is a challenging fight that requires you to manage a stacking debuff with numerous effects. Our Cho’Gall tactics guide is designed to prepare you for any and everything you might encounter!

Cho’Gall Boss Abilities

• Corrupted Blood – increases damage taken from the spell, Corruption of the Old God, by 2%. Stackable to 100.
• Corruption: Sickness – Deals 39,000 – 41,000 shadow damage to raid members in front of you within a 5 yard cone. Also inflicts Corrupted Blood.
• Corruption: Accelerated – Inflicts 2 stacks of Corrupted Blood every second for 60 seconds. Inflicted at 25% Corrupted Blood. Can be dispelled.
• Corruption: Malformation – A malformation grows out of your character model and casts shadow bolts at nearby raid members. Inflicted at 75% Corrupted Blood.
• Corruption: Absolute – Transforms you into a Faceless One. You cannot receive healing and now deal +100% damage with insta-cast spells. Inflicted at 100% Corrupted Blood.

Phase 1 Abilities

• Fury of Cho’Gall – Deals 30,000 shadow and 30,000 physical damage. Also, increases damage taken by 20% for both physical and shadow schools. Will be cast on the target with the highest threat.

Cho’Gall Boss Fight Tactics and Strategy

General

• Everyone will have an insanity meter, aka Corrupted Blood
• Standing in the fire, allow adds to hit you, long mind-control durations, etc. will all cause you meter to increase
• The higher your meter the more negative impacts, at 100% you are mind-controlled and removed from the battle

Phase 1

• Your 2 primary tanks will want to position Cho’gall in the middle of the room.
• Melee will stand behind the boss and healers / ranged should spread out in an arc behind as well.
• When Cho’gall casts Fury of Cho’Gall the tanks should switch.
• Special Abilities
  • Fury of Cho’Gall lasts for 45 seconds, when it’s over you should switch the tanks back.
  • Fire and void zones will be periodically cast around the room, move away from these.
  • Cho’gall will periodically cast conversion (aka mind control) on 3 random players. DPS / dispellers can interrupt Cho’gall’s mind control.
• Elementals
  • A fire elemental will periodically be summoned, dealing huge damage to the tank.
  • A shadow elemental will periodically be summon, dealing huge damage to the raid.
• Adherents of Cho’gall
  • Summons 2 large adds. The first add will appear to Cho’gall’s left side, one of your off tank should pick it up immediately.
  • Drag the add to the stairs. All DPS should switch and burn it down.
  • The second large addon will appear on Cho’gall’s right side.
  • Same thing, pick it up, drag to stairs, burn down.
  • This order will repeat with new adds alternating left / ride sides until you get to phase 2.
• Adherent Corpse Adds
  • Cho’gall will summon adds from the corpses of his adherents.
  • You will know they are coming when he starts the spell, “Fester Blood”.
  • AoE these adds down as quickly as possible.

Phase 2

• Cho’gall enters phase 2 at 30%
• At this point adds will stop spawning.
• The entire raid should stack on top of the small.
• Cho’gall will cast Darkened Creations (aka tentacles) that reduce healing and damage done by 75%, also deal moderate shadow damage. Lasts 10 seconds.
• You can interrupt the casting of the tentacles. DPS should switch to tentacles as they spawn.
• Use all your cooldowns to burn him through this phase.

Cho’gall Raid Strategy Setup

As you begin to improve your gear and competence you may find you need fewer tanks / healers.

10-Man

• 3 Tanks
• 3 Healers
• 4 DPS

25-Man

• 3 Tanks
• 7 Healers
• 15 DPS

Cho’gall Video Strategy Guide