Grobbulus - Naxxramas boss guide

Tactics for Grobbulus in Naxxramas 10/25 for WoW 3.3.5a: poisonous clouds, Mutagenic injection, kite along the wall, Muddy slimes and full loot.
Review
Grobbulus is a fleshy giant, the second boss of the Abomination quarter after Patchwork, who patrols the hall and ramp before the pool. The battle is all about positioning: the tank slowly moves the boss along the outer wall, leaving behind growing poisonous clouds, the raid moves parallel in the center. Players with Mutagenic Injection take their cloud to the wall, Range finishes off the Muddy Slimes. He screwed up the arrangement of the clouds - he filled the whole hall with slime and caught a wipe.
- Pool - at the bottom of the ramp along which the boss patrols; then immediately drag him to the nearest wall.
- The main rule of the raid: we place the clouds compactly, along the wall and next to the previous ones - the space in the hall runs out faster than the boss’s HP.
- The mutagenic injection is NOT dispelled instinctively: an explosion and a cloud appear both when dispelled and after 10 seconds - removed only when the player runs away.
- Outside of battle, Grobbulus periodically spawns Slime from the sewer at the entrance to the wing - after the wipe, return to the boss in a group, not one at a time.
- The wild nature aspect of the hunt (nature resist) makes life much easier for healers - almost all damage in battle is natural.
Combat phases
The boss moves in a circle along the outer wall of the hall, leaving clouds every 15 seconds.Mutagenic injections They fly in rarely (at 100% HP - about once every 18 sec), the raid calmly carries them to the wall. The task is to move economically and not clog the center of the hall.
- Poison Cloud (Poison Cloud)
- Mutagenic injection (Mutating Injection)
- Slime Splashes (Slime Spray)
The frequency of injections increases as the boss's HP drops (according to the script, interval = 6 sec + 0.12 sec × current % HP): by 30% they fly almost twice as often, by the end - every ~6–7 sec. Constantly 2-4 people are switched off from the fight while jogging. There is no trick - burst the boss with all CDs and continue placing clouds carefully.
- RapidMutagenic injections
- Lack of free space
- Burst with all cooldowns
Abilities
Positioning
The pool is at the bottom of the ramp, then the boss drives around the perimeter of the hall along the outer wall (any direction, but one for the entire battle). Clouds from the boss and from the injections fall in a compact chain along the wall - the center of the hall remains clear. By the time of the full circle, the first clouds have already dissipated.
Role Tips
- The boss can be tanked solo - a second tank is only needed for the slimes.
- Watch the boss's left hand: green glow = new cloud, time to move. Don't run - step to the side and stop.
- Never turn the boss towards a raid: one spray on the crowd = a pack of slimes and an almost guaranteed wipe.
- If you catch a hit on the main tank, the off-tank intercepts the boss, and you drop a cloud at the nearest wall between the clouds in the chain.
- Bind Cure Disease instead of Abolish Disease - auto-dispel every 5 seconds will remove the injection ahead of time right in the raid.
- Dispel a shot - only when called by a player who has already reached the drop point.
- Before the explosion, we drown the carrier of the injection to full and hang hots/shield - an explosion of ~10k plus a possible tick of the cloud.
- Holi-palam with Purity of Thoughts has 5 seconds left to react instead of 10 - react instantly.
- Muddy slimes are the range's priority: tenacious slimes gradually grind down healers.
- With a thrust, run to the tail of the chain of clouds, to the wall, at least 30–40 m from the raid; back - a different route, so as not to collide with the next carrier.
- Hiro/CD - after 30%, when shots fly in bursts and DPS sags due to runs.
- Don't let pets and elementals attack the boss: a taunt from an elemental will turn the boss around and flood the raid with spray.
Loot
| Slot | Item | Classes | Note |
|---|---|---|---|
| Shield | Destruction Skull Shield | WarriorPaladin | 10. Tank shield: strength, stamina, block, defense. |
| Weapons | Infection Reflector | PriestPaladinShamanDruid | 10. Crushing right hand for casters/healers: 408 SP, haste, mp5. |
| Ring | Signet Ring of Grobbulus | RogueHunterShamanDruid | 10. Agility, crit, haste, AP - physical dps. |
| Necklace | Amulet of linked bones | PriestPaladinShamanDruid | 10. Int, spirit, crit, SP - healers and casters. |
| Hands | Wargloves of Confusion | PriestMageWarlock | 10. Fabric: stamina, int, haste, SP, yellow socket. |
| Shoulders | Mantle of Noxious Vapors | PriestMageWarlock | 10. Fabric: int, spirit, crit, SP - heal-priest is a priority. |
| Belt | Bubbling Belt of Decay | RogueDruid | 10. Skin, physical dps: 66 agility, haste, AP, ArP-use. |
| Wrists | Putrid Bands | Druid | 10. Skin, heal: int, spirit, haste, SP. |
| Wrists | Alarm Handles | HunterShaman | 10. Chain mail, physical dps: agility, crit, accuracy, AP. |
| Legs | Leggings of Countless Thorns | WarriorPaladinDeath Knight | 10. Plate, physical dps: strength, crit, a lot of haste, 2 sockets. |
| Weapons | Source of nightmares | Druid | 25. Feral Tank Staff: 100 agility, 150 stamina, +2086 AP in forms. |
| Weapons | Foggy Twilight | RogueHunter | 25. Dagger 1.80: agility, accuracy, haste, AP. |
| Weapons | Plaguebringer | PriestMageWarlock | 25. Rod (darkness): int, spirit, crit, SP. |
| Accessory | Vanishing Curse | PriestMageWarlockShamanDruid | 25. 71 accuracy + proc 765 SP for 10 sec - BiS trinket of DPS casters of the entire first tier. |
| Accessory | Gloomy Chime | WarriorRogueHunterDeath Knight | 25. 83 accuracy + proc 612 armor penetration - top physical dps trinket at the start. |
| Accessory | Defender Code | WarriorPaladinDeath KnightDruid | 25. 850 armor + yuz 455 evasion for 20 sec - a strong tank save trinket. |
| Accessory | Talisman of Foresight | PriestPaladinShamanDruid | 25. 111 SP + hota proc for 3572 hp - Hilian trinket. |
| Back | Old winter coat | RogueHunterShamanDruid | 25. Cloak physical dps: agility, crit, AP, AP. |
| Back | Cape of Glitter | PriestPaladinShamanDruid | 25. Caster/healer cloak: int, crit, haste, SP. |
| Back | Cloak of the Darkened Sun | WarriorPaladinDeath Knight | 25. Tank Cloak: bonus armor, strength, stamina, defense, evasion. |
| Back | Old Maid's Shawl | PriestPaladinShamanDruid | 25. Hilsky cloak: int, spirit, crit, SP. |
| Back | Cloak of Disaster Averted | PriestPaladinShamanDruid | 25. Hilsky cloak: int, crit, SP, mp5. |
| Head | Cowl of Vanity | PriestMageWarlock | 25. Fabric, healing: int, a lot of spirit, haste, meta and red sockets. |
| Shoulders | Amice of Sympathy | Priest | 25. Fabric, heal: int, crit, SP, mp5. |
| Shoulders | Mantle of the Weary Sage | PriestMageWarlock | 25. Fabric: spirit, accuracy, SP - option for shadow priest/lock. |
| Chest | Tunic of Permissiveness | RogueDruid | 25. Skin, physical dps: agility, crit, accuracy, AP, 2 sockets. |
| Legs | The Tainted Past | Druid | 25. Skin, healing: int, a lot of spirit, crit, SP. |
| Chest | Dirt-resistant uniform | Shaman | 25. Chain mail, caster: int, crit, haste, SP, 2 sockets - Elem Shaman. |
| Shoulders | Spaulders of Incoherence | Shaman | 25. Chainmail, heal: int, crit, SP, mp5 - restaurant shaman. |
| Belt | Broken Riveted Belt | HunterShaman | 25. Chain mail, physical dps: 74 agility, crit, haste, AP. |
| Wrists | Slime Stream Bands | HunterShaman | 25. Chain mail, physical dps: agility, crit, accuracy, AP, blue socket. |
| Chest | Chestguard of the Weary | WarriorPaladinDeath Knight | 25. Plate, tank: strength, 126 stamina, block, defense, parry, 2 sockets. |
| Belt | Belt of Knightly Deeds | WarriorPaladinDeath Knight | 25. Plate, physical dps: strength, accuracy, haste, red socket. |
| Wrists | Bracers of Freedom | Paladin | 25. Plate, heal: int, crit, haste, SP - holi-pal. |