I'm new to the forum and relatively new to descent, my group has just started act 2 in our first campaign. I am playing Mordrog as a berserker and am looking to acquire the skill "Whirlwind" but I have a question with how it interacts with his heroic feat.

Mordrog's feat: Use after you perform an attack that does not defeat a target. Perform an additional attack, using the same target. This attack adds 1 Surge to the results.

Whirlwind: Perform an attack with a Melee weapon targeting all adjacent monsters. You make 1 attack roll and each monster rols its defense dice separately.

Say Mordrog has 4 adjacent monsters and uses Whirlwind which targets all 4, if all of them live Mordrog can use his feat to make an attack targeting all the monsters again. If any of the 4 monsters are defeated by the whirlwind, Mordrog can't use his feat, or can he? Or does Mordrog's feat have nothing to do with whirlwind and can only use it against single targets?

If anyone has any insight on this, or has already encountered this situation, I'd really appreciate some guidance.

I am of the opinion that his heroic feat would allow you to make another attack targeting ONE of the same targets, not all of them.

To clarify- "Unrelenting" (a Skirmisher skill) is worded differently- it specifies "one of" the monsters. For Mordrog's heroic feat, the trigger is a monster being dealt wound and not defeated. Therefore, you'd use the feat in response to a target not being defeated, and be able to attack that target again. Since it is a heroic feat (and therefore a one-time use,) you cannot use it multiple times for multiple targets. Put briefly, the trigger relates to the target, not the attack.

My point of view :

"Use after you perform an attack that does not defeat a target."

I understand this as if at least one target is not defeated you can use this ability

"Perform an additional attack, using the same target."

You can attack the same target.. but just one among those that have not been defeated

By the way just as a clarification it's Mordrog's from the H&M pack.

The one from the Conversion Kit as another wording for the Feat, and above all requires an action to use... which makes the interaction impossible with 'whirlwind'.

Talking about whirlwind, let's say a hero uses it against 2 adjacent shadow dragons. How many surges he will need to spend to satisfy the shadow ability and deal damage to both dragons?

Talking about whirlwind, let's say a hero uses it against 2 adjacent shadow dragons. How many surges he will need to spend to satisfy the shadow ability and deal damage to both dragons?

FFG has ruled previously that the Shadow ability does not stack on a given attack. Since whirlwind performs a single attack with multiple targets, only one surge is required regardless of how many additional adjacent figures with Shadow are present.