As a reaction, which you use when you are hit by an attack that you can see, you spin gracefully away, avoiding the swing. Roll a d3 and add the result your Defense against the triggering attack. You can do so after the creature rolls 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.