I've never really thought about it, so I'm interested to see the answer too. On Vassal, I know most people just go roll, roll very quickly and then determine if at least one hit and defeated the target.

As per the Resolving Effects section of the FAQ, the enemy is removed from the board before you can start the Twin Attack. So, no Twin Attack.

See what happens when your brain is asleep? D'oh. I most times check the rules/glossary, but forget Resolving Effects. Thanks guys.

Twin Attack is not optional.

a related question a twin att. counts as a single att. correct? because I asked previously if a character with twin would still be able to use Master Yodas CE that grant an extra att. to an ally that had only made a single att. on its' turn and was told that they wouldn't benefit from that CE. I was wondering why since as I understand it a twin counts as a single att.

Or if the attack is canceled before it happens. By Pheromones, for example.

Correct.

Suppose on your turn you attack Xizor and you have Twin Attack, and on the first attack you pass Pheromones and make the normal attack. Then the Twin Attack kicks in. You have to roll Pheromones again. If you fail the second one, then you never make the second attack. In that case, Yoda's CE could kick in and you would get to try attacking Xizor again. (It would have to be Xizor. You couldn't choose another target.) You'd attack twice, actually, since Twin Attack would trigger on the granted attack as well. In this case, it could be a good thing to fail the Pheromones save.



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Edit: And what I just said there is incorrect.

Good call.

Pheromones glossary entry:
This special ability cancels an attack made by a living enemy within 6 squares against this creature. The attacker can resist this effect with a save of 11. Roll the save immediately after the attack is declared but before making the attack roll. That attack is still considered to have been made this turn, and the affected character still spends Force points (if any) used in that attack.

Yes. It doesn't even require Twin, actually, but Twin makes it more likely to happen since there are more chances to hit and chances to make Djem So saves. It can happen because in that case each attack is suspended while another attack begins. Damage is applied after resolving the newly created attack.

http://www.bloomilk.com/Forums/default.aspx?g=posts&t=10805

A has 40hp. B has 30hp.
1. A hits B for 20.
2. B Djem So hits A for 20.
3. A Djem So hits B for 40.
4. B Djem So hits A for 20.
5. A Djem So hits B for 20. (pointless)
5b. Attack #5 is completed and 20 damage is applied to B.
4b. Attack #4 is completed and 20 damage is applied to A.
3b. Attack #3 is completed and 40 damage is applied to B. It is enough to kill B.
2b. Attack #2 is completed and 20 damage is applied to A. It is enough to kill A.
1b. Attack #1 is completed, but B has already been removed from the grid.

On the 5th attack, A attacks B when everybody already knows that both pieces are going to die. The damage racked up in the first 4 attacks will kill both of them. That's why attack #5 is pointless, unless maybe he's hoping for a Flurry attack on an adjacent enemy or something like that.

yes this can happen, but you can also stop it by not Djem SOing. YOu must make the Save, but do not have to make the attack.