The Internal Rot skill reads:Internal Rot: XP Cost: 2, Fatigue Cost: 0Each time a monster becomes hexed, you may place 1 additional hex token on that monster.Each of your attacks with a magic weapon targeting a hexed monster gains Pierce 2.Does this imply any time a monster is hexed, or only the first time?
This is one of those "always on" skills. "Each time a monster becomes hexed" means each time. Each attack yo make against a hexed monster gains Pierce 2, for all eternity or until the game ends, whichever comes first =P
Question #2The Plague Cloud skill reads:
Plague Cloud: XP Cost: 3, Fatigue Cost: 3
Action: Perform an attack with a magic weapon. This attack targets each hexed monster in your line of sight and ignores range. Each figure rolls defense dice separately. Before rolling dice for the attack, each monster adjacent to a target monster is hexed.
Since the attack targets multiple hexed monsters, can I use Enfeebling Hex to discard hex tokens from each of those monsters?
Yes. The attack "targets" each monster, so you may use Enfeebling Hex to discard tokens from any of them.
If so, would the discarded hex tokens contribute overall damage to the attack, or only damage to the monster from which I discarded the hex tokens? For example, I use Plague Cloud targeting two monsters, where monster A has 2 hex tokens, and monster B only has 1. Can I discard all of the hex tokens to deal +3 damage to both monsters, or would it only deal +2 damage to monster A, and +1 to monster B.
(Relevant text from the Enfeebling Hex skill: "When performing an attack targeting a hexed monster, a hero may discard any number of hex tokens before spending surges. The attack gains +1 heart for each hex token discarded.")
"The attack gains +1 [Heart] for each hex token discarded," therefore the bonus damage from each hex token discarded will apply to all affected monsters. Note "affected," not just "targeted." This is indeed a powerful combo.
Also, what happens if I add Blast to the attack (e.g. with the Lightning Strike rune)? Would the blast apply to every targeted monster as well?
This is a bit vague, but I believe the blast radius would emanate from every targeted monster, yes. The text for the Blast effect only refers to a singular target space, but I believe that's simply because FFG was assuming the attack would only have one target. They do that sort of thing. You can ask FFG if you want an official answer.
Any additional monsters caught in the blast would be "affected" but not "targted." Therefore they will suffer the same additional damage from any hex tokens discarded via Enfeebling Hex, but you cannot discard hex tokens from these monsters as they are not "targets." (It could happen that a monster has hex tokens, but is not within LoS of the Hexer, therefore is not targted by Plague Cloud directly but may be close enough to get caught in the Blast from an actual target.)
Also note that there is no "affected twice." In the event that multiple Blast radii "overlap" on a single space, any monster in that space is only hit once by the attack.