As a reaction, which you use when you are hit by an attack that you can see or when you make a Reflex saving throw, you spin gracefully away, avoiding the swing or effect. Roll a d3 and add the result your Defense against the triggering attack or to your Reflex saving throw. You can do so after the roll but before any effects of the roll occur.
You can expend 2 additional stamina dice to roll 2d3.
You can expend 4 additional stamina dice to roll 3d3.