Ice Harmonics

 
Prerequisite(s): Bardic Music, Perform (Any) 6+ ranks
 
Benefit: By using one of your Bardic Music uses, you can cause any unattended, nonmagical ice object or portion of ice (5' Square), to explode violently. The target must be within 30' of you, and you must be able to sing. Any creature within 5' of the explosion takes 2d6 + your Cha modifier piercing damage.
 
Source: Frostburn