Background:
There is considerable dispute over whether a hero may trigger Rapid Fire after the OL has used Dark Charm to make an attack with that hero.
Clearly the OL may not use Rapid Fire, as he cannot spend fatigue to activate it. Equally clearly (for most people) the hero cannot trigger Rapid Fire while the OL player has control, as Rapid Fire is not a defensive option and is not therefore remaining under hero control.
The use of Rapid Fire specifies that the fatigue must be spent 'immediately' after the attack.
The technical argument comes down to exact timing and such abstract concepts as 'simultaneous' effects and 'hand over of control'. The thematic argument is, as always, a matter of personal choice.
There is a long, possibly boring and at times almost painfully abstract thread available here , if technical details are necessary (probably not worth the effort of reading).
A quick summary might say:
1. Rapid Fire triggers "immediately after an attack"
2. Only the hero player can trigger Rapid Fire, and not when the OL is in control of the hero.
3. The OL controls the hero "for that attack"
4. There must be a change of general control back to the hero before the hero can use rapid fire.
5. The change of control is either simultaneous with the end of the attack, or sequentially after the end of the attack.
6a. If change of control is simultaneous with the end of the attack, then the Rapid Fire can be used 'immediately' - therefore Rapid Fire can be used.
6b. If change of control is after the end of the attack, then we have a sequence 'end of attack' -> 'change of control' -> 'Activate Rapid Fire' but Rapid Fire is not being 'immediately' used due to a required interruption in the sequence between 'end of attack' and 'Activate Rapid Fire' = therefore Rapid Fire may not be used.

Question:
Q. If the OL Dark Charms a hero with Rapid Fire and makes an attack, can the hero use that attack as a trigger to activate Rapid Fire?
A1. Yes. The hero must make the attack immediately after the Dark Charm is finished.
A2. No. The hero cannot activate Rapid Fire 'immediately' while under the control of the OL and thus cannot activate Rapid Fire at all in this circumstance.

To me, this is pretty simple. I would say no, just for the fact that Dark Charm is to try and harm the heroes. And if the hero is able to use his rapid fire AFTER such an event, then it really can benefit the heroes.

A simple answer. I am going with A2.

Should this question be expanded to include the other similar skills such as cleaving and quick casting? I know they aren't nearly as powerful as Rapid Fire but it would be annoying to have a decision on RF and have people argue that as the other's weren't included in the FAQ the opposite answer is still a possibility.

Obviously QC could have already been exhausted but cleaving is still open to this if the OL is foolish enough to have critters adjacent to the DCed hero.

dragon76 said:

Good point - I suspect it should.

As a related question (though it probably shouldn't be included in the same question) perhaps we could ask for a specific definition of the term "immediately" and what game events do or do not constitute an interruption prior to "immediate" reactions.

ie: if control of a figure changes to a new player in between trigger and response, is it still considered "immediate?"

- as a corollary, supposing the OL had some card that allowed him to do something "immediately" after making an attack with a figure (I don't know if such a card exists, but it might in the future.) Could the OL use such a card on a Dark Charmed hero before control reverts to the hero player?

- if a figure spends fatigue to gain more MP (but doesn't spend those MP on anything) in between the trigger and response, is it still considered "immediate?"

- if a third party figure uses an interrupt like guard in response to your figure trying to activate an "immediate" reaction, after the trigger has passed but before your figure's response, then can the response still be resolved afterwards, or is this no longer "immediate?"

I'm sure there are more examples besides. It seems like every so often someone comes to these forums with a corner case that hinges on whether or not something that must be done "immediately" can still be done after event X. It would be nice to know exactly what "immediately" means for such discussions.

To avoid needing to compile an exhaustive list of things that can happen in between a trigger and an immediate response, it might be better to categorize such events as either "things which change the board state" or "things which don't change the board state" and give an answer for each. Control of a figure changing to a new player, for example, would be something that doesn't change the board state. An interrupt like Guard would be considered something that DOES change the board state, since there is the possibility that figures may be moved or removed as a result. Even if a specific in-game example did not result in the board state changing, activating a Guard would still be considered something that DOES change the board state.

I would also argue that adding or removing fatigue/wound tokens, should count as changing the board state, even though this technically happens on the character sheet. The number of remaining resource tokens a given figure has is a metric that can be changed. Likewise playing a card or exhausting/discarding an item.

Revision: Included Cleaving and Quick Casting. Sorry Stev-O, the immediate thing is too big for this right now - it could be a different thread?

Background:
There is considerable dispute over whether a hero may trigger Rapid Fire after the OL has used Dark Charm to make an attack with that hero.
Clearly the OL may not use Rapid Fire, as he cannot spend fatigue to activate it. Equally clearly (for most people) the hero cannot trigger Rapid Fire while the OL player has control, as Rapid Fire is not a defensive option and is not therefore remaining under hero control.
The use of Rapid Fire specifies that the fatigue must be spent 'immediately' after the attack.
The technical argument comes down to exact timing and such abstract concepts as 'simultaneous' effects and 'hand over of control'. The thematic argument is, as always, a matter of personal choice.
There is a long, possibly boring and at times almost painfully abstract thread available here , if technical details are necessary (probably not worth the effort of reading).
A quick summary might say:
1. Rapid Fire triggers "immediately after an attack"
2. Only the hero player can trigger Rapid Fire, and not when the OL is in control of the hero.
3. The OL controls the hero "for that attack"
4. There must be a change of general control back to the hero before the hero can use rapid fire.
5. The change of control is either simultaneous with the end of the attack, or sequentially after the end of the attack.
6a. If change of control is simultaneous with the end of the attack, then the Rapid Fire can be used 'immediately' - therefore Rapid Fire can be used.
6b. If change of control is after the end of the attack, then we have a sequence 'end of attack' -> 'change of control' -> 'Activate Rapid Fire' but Rapid Fire is not being 'immediately' used due to a required interruption in the sequence between 'end of attack' and 'Activate Rapid Fire' = therefore Rapid Fire may not be used.

The same questions really apply to Quick Casting and Cleaving, though they haven't been asked, so the Q&A should probably cover these skills also.

Question:
Q. If the OL Dark Charms a hero with Rapid Fire, Cleaving or Quick Casting and makes an attack, can the hero use that attack as a trigger to make an additional attack after the Dark Charm is completed?
A1. Yes. The hero must make the attack immediately after the Dark Charm is finished.
A2. No. The hero cannot activate these skills 'immediately' while under the control of the OL and thus cannot make an extra attack in these circumstances.

Comments: Anything more before transferring to FAQ proposal document?