.. when you’re playing Shattering Crescendo, you already need the second copy of Shattering Crescendo in your hand and you cannot rely on drawing a second copy of the card as replacement for the initial Shattering Crescendo? The reason is, that you need to be able to pay the “cost” of the card when announcing the action. This comparable to not being able to play an action card that costs two blood when you only have one and/or having the weapon in your hand when you’re playing Concealed Weapon.
Reference: [LSJ 2010-08-02]
.. that you can burn a vampire who attempts to bleed for four (or more) by using an Archon Investigation even though you have a Protected Resources in play? The reason that the reduction of a bleed to two only kicks in when the action resolves, that is the pool is actually reduced by the bleed amount. On the other hand, to play Archon Investigation it is enough that the acting vampire is attempting to bleed you.
In the same sense, when you’re bleed for four and you reduce the bleed by two (e.g. by using Telepathic Counter), you’re still bled by two. The effect Protected Resources only kicks in later, effectively leaving the bleed at two.
.. you can target a vampire that is immune to Frenzy cards with Deep Song (using superior Animalism), but the targeted vampire is not tapped and there’s no resulting combat? The reason is that the (Immunity to) Frenzy isn’t part of the targeting requirements, and therefore the vampire can be targeted. On the other hand, during the resolution of the Deep Song action, the immunity to Frenzy advantage is checked, and therefore the actual consequences of the action are non-existing. Unless, of course, the targeted vampire (or any other minion) chooses to block the action, in which the normal blocking/combat resolution takes place.
.. you cannot play Form of Mist at superior Protean (to continue the action) when the extra stealth provided by Form of Mist is not needed (as compared to the intercept of the currently blocking minion). As a general rule, you cannot play stealth cards when the stealth is not (yet) needed, and Form of Mist has no exception clause in its card text. Therefore the general rules apply, and you cannot play Form of Mist when you don’t need the stealth.
Granted this is a cornercase, because the blocking minion needs to lose some of the intercept during the resulting combat, but it can happen. For example, the retainers (Raven Spy, Mr. Wintrop) providing the intercept get killed during combat (e.g. by Weather Control) or the acting minion nullifies the intercept during combat (Stanislava negates the retainers intercept during combat).
.. when you have been using superior Eagle’s Sight to block an action (after ignoring the normal prey, predator or target restrictions for blocking actions), and the acting vampires continues the action after a successful block (with cards like Form of Mist or Crypt’s Sons), you need another way of blocking the action again. In other words, Eagle’s Sight is only good for one block attempt. But since you cannot play the same reaction card twice during an action, you (most likely) cannot block the action any longer.
The reason for this is the card text, which states the card allows the reacting vampire attempts to block the current action despite of the usual restriction. The same applies to Falcon’s Eye at superior Spiritus with the same card text. Anneke on the other could block again in the situation described above, because her card text is sort of permanent, allowing to break the usual block restrictions multiple times during an action.
.. you cash in a Priority Contract for 3 pool when a vampire is moved to the uncontrolled region after a successful Banishment referendum? Typically when gaining pool from a Contract, you either burn a vampire or at least send him torpor. In the case of a Banishment, the vampire moves the uncontrolled region, which (of course) is not part of the ready region. Even though the Priority Contract (along with any other cards on the vampire) would be out of play after the Banishment, the Priority Contract states the Contract can be burned and the 3 pool gained, when vampire would leave the region; that is right before he is moved to the uncontrolled region.
.. that after a vampire (or any other unique minion) has been burned, and a new copy of the same vampire has been brought into play, the new vampire is not affected by cards that have been pointing to the original vampire? For example, Lodin enjoyed the blood flow from The Rack, and is then burned in combat or by diablerie. In the next turn a new copy of Lodin is moved to the ready region. This new copy of Lodin does not receive the benefits of The Rack (even if it hasn’t moved yet to point to another vampire).
For all intents and purposes, different copies of the same vampire are considered different (except for contesting). Another example is that even if the first copy of has yielded his title (e.g Lodin has not been the Prince of Chicago anymore), the new copy of the vampire, still has the title (and would contest it again, if there’s another vampire holding the same title in play).
This, of course, is not really relevant for cards that have been placed on a vampire directly. Cards like Fame, or Heroic Might go the ash heap as soon as the vampire attached to the cards is burned or diablerized.