The combat takes place in action rounds.
In each round, the characters can perform one action each.
The turn order is determined by the Reflex value + 1D6.
Each character has one action per round.
If I attack or save my action for a defense, then I have no penalty to my roll.
If I have already taken my free action this round, I can still defend against attacks. Then, for each additional defense performed, one fewer die is rolled on my roll.