Am I correct in understanding that you will know your attack test result when deciding whether to take this stunt.
That is, if I'm attacking an Enraged Corpse, and roll 1, 1, 4 (on the dragon die) for a total of 10 (assuming bonuses of +4) I attack it successfully.
Now, imagine there standing a Dragonling next to it. I could use my 4 stunt points to make a Dual Strike.
However, if I've played a bit, I know an attack score of 10 won't hit much of anything (except another Enraged Corpse), so is it okay not to choose the Dual Strike Stunt in this case?
That is, is it okay to only choose this stunt when I suspect it will be effective? In fact, would you recommend the Games Master to tell the player this outright? ("You know Bob, I wouldn't choose a Dual Strike in this case; you're only going to waste your stunt points").