Countersong: A bard with 3 or more ranks in Perform can counter magical effects that depend on sound (but not spells that simply have verbal components). As with inspire courage, a bard may sing, play, or recite a countersong while taking other mundane actions, but not magical actions. Each round of the countersong, the bard makes a Perform check. Any creature within 30 feet of the bard (including the bard) who is affected by a sonic or language-dependent magical attack may use the bard's Perform check result in place of his saving throw if, after rolling the saving throw, the Perform check result proves to be better. The bard may keep up the countersong for 10 rounds. Countersong is a supernatural ability.