Two Weapons talent's double parry

[Axly Suregrip]

The "Two Weapons" talent states, "on any turn he attacks, to do any one of the following" and one of the following is "(c) parry with both weapons, adding an extra die to attempts to hit you and stopping 4 points of damage from any successful attack, but not threatening the enemy."

Which option does the engaged fighter choose to do the above? Attack or Defend? It states "attack" but it seems odd that an attack has no attack component as both swords are parrying?

Then if it is Defend and you have a Fencing Master (who gets Two Weapons when fencing), this means when he double parries he get 3 additional dice and 4 damage reduced. On top of the DX -3 to hit him already.

Seems this has to be an attack. What do you think?