Dance of Ruin (Combat)

You have learned an risky almost forbidden secret elven technique of battle.

Prerequisite: Dex 13, Dodge, Mobility, Spring Attack, Base Attack Bonus +4

Benefit: As a swift action, you may make a DC 20 Perform (dance) check when using Spring Attack to gain a +2 circumstance bonus to attack and damage rolls until the start of your next turn. For every 5 points by which you beat the DC, the circumstance bonus increases by 1.