1. Fatigue can be used to gain MP. Is this useable only if the action is a movement action, or can it be used in conjunction with any other action? Do the fatigue points have to be used at any specific time during the turn?
Spending a fatigue to gain an MP is an ability a hero may use at any time during his turn. It is not associated to the Move Action, or any other action for that matter. It can be used before and/or after any action, as many times as the hero can afford to spend fatigue points.
The MPs gained from these fatigue may also be spend at any point during the hero's turn. They need not be spent immediately after gaining them. They need not be spent at all - although they will be lost at the end of the hero's turn, and that would be a waste of fatigue.
2. I have some questions regarding “Raise Dead” and “Fury of Undeath” (Widow Tarha skills):
a. Raise Dead: “-->: Place your Reanimate familiar token in a space adjacent to you.” You may only control 1 Reanimate at a time. You may discard your Reanimate token at any time during your turn.” Costs 1 fatigue.
How many times during an encounter may this card be used? I understand this to be a one-off card which stays “tapped” until the next encounter.
The action symbol does not imply "tapping" the card. Your friends have perhaps been playing too much Magic: the Gathering. =P
Raise Dead can be used as many times as the Necromancer has actions (and fatigue) to spend on it. He/She could do it twice in the same turn if he really wanted to.
The only abilities that are limited to "once per encounter" are the Heroic Feat abilities of each hero.
b. Fury of Undeath: “-->: Exhaust this card to activate your Reanimate. Your Reanimate still activates this turn as normal.” Costs 1 fatigue.
Based on my assumption that “Raise Dead” was only useable once per encounter, I drew the conclusion that this card’s purpose was to bring my Reanimate onto the board for a second and final time. If my understanding for Raise Dead is wrong, however, I am unsure what the function of this card is…
"Exhaust" is mechanically equivalent to "tapping." (I think the rules technically tell you to flip the card face down rather than rotate it sideways, but you get the idea.) Exhausted cards are refreshed ("untapped") at the start of the hero's next turn.
Because Fury requires an action AND exhausts the card, it may only be used once per turn, and it will consume one of the hero's actions for the turn.
Generally speaking, I would also like some confirmation on what “exhaust” and “-->” mean in this game, and if their meanings are ironclad and there are no exceptions. Our group have developed a few heresies, I feel…
"Exhaust" means the card is "used up" and cannot be used again until it is refreshed. Cards generally refresh at the beginning of the hero's next turn. There are a few cards which have additional effects while the card is exhausted. These effects can only be used when the card is exhausted, and not while it is refreshed. Of course, it's usually pretty easy for a hero to make sure such cards stay exhausted whenever he wants the effects thereof.
"-->" (the arrow symbol) means that the ability described requires one of the hero's two actions for the turn. There is no limit on the number of times that this ability can be used, unless the text of the ability says there is. Most heroes have only two actions per turn, so there's a natural limit of twice per turn that such abilities could theoretically be used.
Requiring an action does not imply exhausting the card, nor does exhausting a card imply it requires an action.
Edit: my post appears to have exploded. Sorry about that.