WoW Achievements — Browse All Achievements
Track all 8,600+ World of Warcraft achievements. Browse by expansion or category — Dungeons & Raids, Quests, Exploration, PvP, Professions, Reputation, and more. Sync your character to see completion progress.
Browse achievements from all expansions including The War Within, Midnight, Dragonflight, Shadowlands, and Classic. Find guides for Glory of the Raider, meta-achievements, PvP achievements, exploration, and more. Track your achievement points and completion progress via Battle.net.
Yak Attack
Kill 15 Sra'thik attackers at the Niuzao Temple within 5 seconds.
Yak Attack requires you to kill 15 Sra'thik attackers at Niuzao Temple in Townlong Steppes within 5 seconds.
Travel to Niuzao Temple
Head to Niuzao Temple in Townlong Steppes. The Sra'thik attackers you need are located in the grass at 42, 59. There are 6 groups of Sra'thik spread across the temple ruins, with a large cluster of 13-14 mobs on the northwest portion and additional groups to the northeast and southeast.
Use Niuzao to Burst Mobs
On days when the giant ox Niuzao is running laps around the outer courtyard, gather at least 15 Sra'thik — the large eastern corner group is ideal since most of the mobs can be pulled without leashing — and position them in Niuzao's path. Each mob has 393,000 health, making Niuzao's charge the most reliable way to kill 15 within 5 seconds. If you have a 
Battle Horn, stand between two packs, use it to aggro them, then position the group in Niuzao's lane.
Alternative: AoE the Eastern Pack
If Niuzao is not active, pull the large group of Sra'thik from the eastern corner of the courtyard at 42, 59 and AoE them down simultaneously. Use instant-cast abilities on any stragglers nearby to push your kill count to 15 within the 5-second window.
Tips
This achievement is easiest to attempt on days when the August Celestials dailies are active at Niuzao Temple, as Niuzao will be patrolling and the full mob population will be present.
If Niuzao is not appearing for you, form a group of 5 players, have each member pull 3 mobs each to a central marked spot, then AoE everything down together — see the video guide for a visual walkthrough.