Thunderstone Level 5+ Uncommon
On impact, this clay sphere unleashes a clap of thunder that can deafen creatures and knock them back.
Alchemical Item: Volatile
Formula Cost: 200 gp
Key Skill: Arcana or Nature or Thievery
Time: 1 hour
Power (Thunder) Consumable (Standard Action)
Make an attack: Area burst 1 within 10; +8 vs. Fortitude; on a hit, the target takes 1d4 thunder damage, is pushed 1 square from the center of the burst, and deafened (save ends).