- Horn of the Herald
- Binds when picked up
- Unique
- Trinket
- Item Level 138
- Equip: Improves haste rating by 43.
Use: Increases spell power by 183 for 20 sec. - Sell Price: 5
69
13 - Cooldown: 2 minutes
Source
This item is a quest reward from 
[71] Return to Atuik.
Notes
At level 80, the amount of Haste given is:
43 / 32.79 = 1.31%
Effective Spell Power
Assuming this trinket were activated every cooldown, it would grant an effective:
183 * 20 / 120 = 183 * 1 / 6 = 183 / 6 = 30.5 Spell Power