Allies and vampire disciplines (Specifically the Nocturn)

To be fair, paying at strike resolution would probably be an improvement over the current rule. It would be a simplification, would increase the value of currently unplayable strike cards, and would provide situations where Dodge might be more interesting than Combat Ends.

Boris The Blade wrote: To be fair, paying at strike resolution would probably be an improvement over the current rule. It would be a simplification, would increase the value of currently unplayable strike cards, and would provide situations where Dodge might be more interesting than Combat Ends.

I agree that it would be quite interesting. I think the current way flows more intuitively (you still strike regardless of if it hits), but truckloads of cards that would need light to intense erratta to otherwise be playable would suddenly become an option if S:CE didn't make them such a liability.
Top of my head:
Body Flare, Coma, and Bonecraft.
I'm not super adamant about a change being needed though, as this would be counterintuitive to cards that grant manuevers but are Also a strike (and cost, of course) .
But it's not a super alluring thing compared to other changes or even just cost errata on some cards.

I also don't think changing strike costs to be paid when resolving the strike would simplify anything, quite the contrary. I consider the current system to be simpler. You play a card and you pay for it. Simple, yes?

The suggestion would introduce a period of time during which opponent can play cards that change your calculations, and introduce new rules quirks to remember, such as what happens when you take enviromental damage during strike resolution. Which happens first? Do you get to pay or not? Theft of vitae, etc. In fact any damage taken would already create a conundrum between paying for costs and losing blood at the same time.

Ankha wrote: All the cards (except action cards) are paid when played. How adding a new exception would simplify the rules?

But all the cards (except action cards) resolve when played, and action cards are paid when they resolve. So the general rule is: all cards are paid when they resolve.