Odd question just because I'm not sure and couldn't find an anwser with a general search. I am guessing that in the end since players can use skill abilities during an attack then they can as well use them during an interupt attack. The skills that bother me in this dept are the ones that allow heroes to make an extra attack or multiple and until last game it didn't come up.
Rapid Fire (subterfuge): After making a Ranged attack, you may immediately spend 2 fatigue to make 1 additional attack with the same weapon this turn. You may use this ability multiple times, paying its cost each time.
Quick Casting (magic): After making a Magic attack, you may immediately spend 2 fatigue and exhaust this card to make 1 additional attack with the same weapon this turn.
Both of these decare "this turn" as part of their activations unlike...
Knight (melee): When you declare a Battle action, you may immediately spend 2 fatigue to gain movement points equal to half your speed (round up) and may make 3 attacks instead of 2 this turn.
Cleaving (melee): Each time you kill an enemy with a Melee attack, you may spend 1 fatigue to immediately make one additional attack with the same weapon. You may do this once each time you kill an enemy with a Melee attack.
Both of which are specific, one requiring a Battle action to be declared, the other specifying a Melee attack that kills an enemy (which could happen any time one kills an opponent even on the OL's turn).
My question is, do the first two skills (Rapid Fire and Quick Casting) also apply during the use of a Guard order, or are they restricted to the Heroes turns? I'm suspecting the former even though I know I won't like that answer.