I had trouble doing this from just the notes here and a lot of the videos on YouTube aren't really that helpful. So I put together a short 3 min guide on doing this at level 100
Short Sinestra guide - lvl 100
https://www.youtube.com/watch?v=OncxknKVwjA
Achievements › Dungeons & Raids › Cataclysm Raid
Achievement
Heroic: Sinestra
Defeat Sinestra in the Bastion of Twilight on Heroic Difficulty.
Heroic: Sinestra is a 10 point achievement in Cataclysm Raid. Its criteria ask you to defeat any one of 2 creatures in The Bastion of Twilight.
How to Earn
How to Complete
2 criteria from the current game data. Any one of them completes it.
Defeat these creatures (2)
Lines the game data counts toward this achievement.
- Sinestra
- Sinestra
Reward
Title: Dragonslayer
- TitleDragonslayer
Details
- Category
- Dungeons & Raids › Cataclysm Raid
- Points
- 10
- Faction
- Both factions
- Requirements
- 2 criteria lines
- Instance
- The Bastion of Twilight
- Instance type
- Raid
- Expansion
- Cataclysm
About The Bastion of Twilight
The Bastion of Twilight stands as a dark symbol of the Old Gods' burgeoning power on Azeroth. Various branches of the Twilight's Hammer dwell deep beneath the towering form--considered the cult's foremost command center--along with their twisted leader, Cho'gall. There, he and his servants conspire to bring the Old Gods' apocalyptic visions to fruition by bleeding Azeroth of all sanity, hope, and life.
From the in-game Adventure Guide.
Where to Earn It
Heroic: Sinestra is earned inside The Bastion of Twilight, a raid. The entrance is marked below.
The entrance to The Bastion of Twilight is in The Twilight Citadel, Twilight Highlands at 33.9, 78.1.
Entrance 33.9, 78.1Twilight Highlands, from the game’s own world map art. The framed marker is the Adventure Guide entrance.
More like this
Other achievements in Cataclysm Raid.
The highest voted Wowhead comments for this page. They are community notes, not TheWoWDB comments.
At level 110, all you have to do is not stand near the friendly NPC in phase 2.
Doing so prevents the friendly NPC from taking dmg from the pools she drops under your feet which would kill him and then would make the boss despawn. (I cannot heal him so I have to kill the boss before he dies, which at lvl 110 is easy.)
After some RP destroy the eggs and then her. Took less than 2 min total.
Trivia: Sinestra was (in life) one of the few, if not the only one, mates of Deathwing who could bear the heat emanating from his body (But not without a price, the scars of their mating never healed). She is also the mother of Onyxia and Nefarian and the first to "create" the twilight drakes by using a fragment of the dragon soul to channel a nether drake's essence into the egg of a black drake.
Community notes from Wowhead · 27 comments
Top 3 shown aboveThe comments below were written by Wowhead users. They are community notes, not TheWoWDB comments. See them in context on Wowhead.
The top 3 are shown in Top Comments above. Read all 27 on Wowhead.