I would only run Vamp in Gifts if I was playing the Flame-Vault kill.
Maybe you like it because of your toolbox.
I think that 1-2 bounce spells is enough. Darkblast, Crypt, Cunning Wish make you stray from your Gifts path.
Gifts is very good at what it does and you don´t need to take a defensive position "keeper style".
I keep in V.T. only for a couple of general porpouses:
1) Additional 1cc ( and consequently first turn) tutor for Ancestral/Tinker/Gifts
2) Tutor for Needle or Crypt
3) Tutor for Non-Blue Game Ending cards
4) Quicker access against aggro-control to my "non-blue" bombs
I have a good side that unluckily for me should be backupped by a good amount of tutors for cards that are almost NON-blue. Aside of D.T., I would like to have another Non-ReBable tutor for them.
I tried Imperial Seal too, but I have no affinity at all with it.
The Instant aspect of V.T. made it at least "tricky" and only a "partial" waste of time.
Merchant#2 come in replacying I.Seal.
On the other hand, I would like to play with the possibility to fill a Gifts Ungiven with Tutors, and negating me a V.T. could be too constraining.
While I'm continuing to play with it, I'm not blind or dumb. I realize that it is the "weakest but the more flexible" among the tutors. Simply, I cannot found a better replacement for it

Just kill them, that is the best answer to whatever your opponent may drop on the table.
This is so true but so abused that I expected to hear it from anything but you

You are a wise man, Gabe!.
I cannot think about you being addicted to "simply win".
This deck ( as some others proposed with a similar structure )
minimize the number of things that the opponent can do to prevent you from winning.I'm not so brave to play without a couple of single tools for that little percentage of unwinnable situations.
If the opponent can win against me, it would not do it abusing of bugs of my deck.
To be able to win, he must outplay me or simply die.
First of all, thanks for the thoughts about the deck.
As you pointed out, my referral about F.F.V. as secondary win condition of a Gifts.dec, implies that I consider B.Wish SO CRUCIAL for this deck that I'm only boundarily referring to it strictly as a "winning condition".
I won through ToA so frequently that sometimes I forget about ALL the other uses that B.Wish usually have, but, talking about "things that are used ONLY WHEN you are going to win", I can consider only DSC and F.F./Vault.
From my point of view, the American TFKs.based.Gifts.dec have 2 different winning conditions PLUS that extraordinarily good card that is called B.Wish.
IT IS THE deck-defining card ( aside with Gifts and Y.Will ).
Now, if you reread my whole sentences, you can easily realize that there are a lot of arguments that can be used both to defence or to support the use of another additional way to win ( the third one

).
This is my experience and my thoughts.I want a deck that would not clunk itself against control and combo decks with stupid winners in hand.
Additional ways to win are extraordinary good against Aggro and Aggro control decks, against which you can try to race their pressure with a couple more lethal winners.
It is usually a good strategy to use against decks that are not so well equipped to take care of quick and well focused single attacks.
Try to compare their usage against T1T or a C.Slavery and then thier frequence against fcg or fish.
You are going to use them almost only against the latters.
If I'm going to face them, I want to think about "the card to use to win" only in the end.
Usually you can be sure of winning against them only racing their cards' advantage war and not trying to dodge their defences with quick wins.
This is not only "playstile".
I'm sure that the path that I'm going to follow is far more safer that the other one.
I risk to have LESS dead cards DURING the game.
It is crucial for a correct development of the game.
A strong TPS build usually not packs more than 2 ToA
A good UR-Stacks build usually not play with more than a single Karn and a single Triskelion.
A winning Atog deck don't play his winner in more than 2 copies.
All the OTHER cards in the deck would help you "on winning" and they are the reasons of you victories, while your winners are only the "instruments" that you use to win.
If you agree with me, you are aware that, the more cards you consider "winners", the less cards you would find "useful" on putting you on the winning side of the table.
I realized that the winners themselves usually don't win nothing.
More winners are usually directly connected to unfrequent wins.
To me, the best use of these slots is to break them down into generalizations first. Does the deck need more tutors? What about card drawing? Metagame answers? Once you have it broken down, it becomes far more easier to determine what card would be best suited in the main deck in one of those slots. The general formula I personally try to follow is:
1-2 Card drawing
2-3 Tutors
3 "Answers"
Your skematic approach to my reasoning behind some cards' choice is really insightful and I usually naturally try to build decks with a general skeleton for the "free cards" exactly with that structure.
Good point!
Talking about the cards that I found "good" or "replaceable" in the list that I proposed, I found me about being totally unsatisfied by C.Wish ( and Stripmine ).
That last slot is tormenting a cursing me since a couple of weeks and the large variety of different matchups against which I'm testing now, doesn't help me at all.
Playing almost against any kind of deck and focusing on building a deck prepared for specific matchups isn't a good move at all.
Tormod's Crypt is really good.
The only other card that satisfied me as much as it, was Pithing Needle, both for his impact on the game, both for his inherent sinergy with TFK.
I think that I would re-add Pithing Needle#1 in my maindeck for my next tourney.
I would try to fit Needle#2 and #3 somewhere in the side to power-up the Fish matchup.
Talking about the possible configurations available that could be "used" for specific metagames, I would have played really ( during my last toruney ) in a better way with:
4 Duress
1 Darkblast
1 Gifts
( naturally adding the basic Swamp to support all that black ).
A configuration with SO MUCH control is undeed the best way to kill Control and Combo decks.
They are my curse and my most feared opponents, so it is natural for me to think about killing them with ease.
On the other hand, a configuration like this, would be really "hard if not impossible to play" in a Fish or MW filled metagame.
De gustibus non disputandum est 
...as much as the metagame choices

It's important to remember that the choices made for the cards to play in these slots are influenced heavily by the metagame in your area. It isn't wise, for example, to main deck Pithing Needles if Stax and Fish aren't popular in your area. Likewise, if there is a distinct lack of Control Slaver and Fish in your area, then Darkblast probably doesn't belong in the main deck either.
You are perfectly right.
I added Darkblast because I have not so many Welders to kill, but I'm flooded by both D.Confidant based decks and Fish.decs. Among those ones, I can find Fishes caracterized by all the colours available and all the D.Conf.based decks abailable. Sometimes, both Welders and Shamans ( and random aggro ) make their appeareance, so having a good Darkblast to recurr every turn is MVP.
Popular decks also have effects on the mana base one runs. For example, if you were in an area heavy in Stax, particularly lists with Chalice, you may want to run more basic lands and cut both Mana Vault and Vampiric Tutor for an Island and a Merchant Scroll/additional bounce spell to combat the effectiveness that a Chalice set at 1 could have on your deck.
You are soooo right about Mana Vault.
I hate and love it almost any game.
I like it when I'm holiding a couple of 4cc spell during my first two turns of the game.
In a lot of other situations, it is awful and a bad colorless DarkRitual
I would like to play with U.Sea#3 if I would see more denial based decks.
During my last tourney, I play with this mana base configuration
5 fetch
4 island
3 u.sea
3 volc
9 solomoxcrypetal
1 academy
1 loa
for a total of 26 mana fonts.
I flooded only once ( during the semifinals

) but I outplayed any fish and stacker's opponents wihtout too much difficulties
A bit less acceleration and a couple of additional land's drops made my deck FAR more resilient to hate
I'm playing a list that's following the same strategy, and very similar to your list. (Actually, I started with almost card for card the same list, except for darkblast which wasn't legal at that time). The biggest difference is that I started off with 4 thirsts like you, but I went to 3 and I'm currently running 2 thirsts (and 3 gifts - 1 fof). Part of this is due to the fact that I'm only playing 1 Pithing needle, next to the artifact mana and the colossus. I feel thirst is not spectacular, but not that bad either. I can't think of a draw spell to replace it with.
I can be with you with the argument that playing with too few maindeck's artifacts can support an unpleasant feeling towards TFKs. For this reason, I added a couple more artifacts or discardable cards.
Until now, I could not find ANY OTHER good repleacent for them
I tried both Deeps, Skeletals and Impulses.
I referred to you all, here on TMD, about my experiments with those strange "drawers stacks" during the last months, but noone really satisfied me.
I went 3TFK-1Skeletal-1FoF, 2TFK-1Deep-1Skeletal. Then I tried 3TFK-3Gifts-1Impulse and so on.
A lot of cards are the perfect fits against specific decks.
Deep shines against PureControl decks without Mis-Ds
Skeletals is perfect against mirror matches of any kind
Impulse are really good against aggrocontrol decks
And so on...
In each ones among those specific situations, TFK is MEANLY comparable to all the other choices.
It doesn't shine particularily during anyone of them, but in the end, it is overall better.
I simply prefer it because it is IN COLOR, CHEAP and INSTANT
Darkblast is the best removal for */1 creatures, no doubt about that. However, I don't think it is the best choice main deck. a Fire/Ice is better IMHO, certainly if you run 2 merchant scrolls. Not only does it kill the most annoying creatures, but it also taps permanents. I believe I'm certainly not the only one that had a game where 2 colossus where facing each other. Merchant Scrolling for fire/ice to tap theirs wins games. Also, we have the standard stuff of ice being blue en cantripping thus not being dead against storm combo, but that's pretty basic. All in all, I believe fire/ice should be main, whilst darkblast is a strong sideboard choice.
I missed to add that option in the last posted list.
Good shot, Eddie!
I would try to re-try again F/I in the C.Wish spot during these days.
I'm going to check any one of the possibilities available for a good "2x1" or "2forX" answer.
I'm sure, that the ability of being hecked via M.Scroll his huge.
On the other hand, after more than 3 years of heavy use of M.Scroll in every deck I played, I'm going to value it "as not so good" in the current metagame...
Anyway, it would be far more useful than C.Wish for sure ( especially with a sideboard not so well equipped for it

)
So you are basically running a little toolbox here. Wouldn't it be better to run an Imperial Seal over the second Merchant Scroll? Certainly if you run the 1 tormod's crypt / 1 pithing needle configuration? It has great synergy with burning wish and recoup. It is certainly not worse than vampiric tutor in this deck. Both have their advantage and disadvantage here. You can always board it out, and it's still available in the side getting you everything you need. Maybe you should try it as a Burning Wish target in the side? Don't misunderstand me: merchant scroll is a great card. But it gets worse if you run less blue cards, and more toolbox stuff. And it's fun to cast seal, recoup it, then wish it back
In real life, I blindly buy an I.Seal, strong about the fact of being able to use it almost forever and wherever.
After an entire month of gameplay I completely change my mind.
It is so slow that I swapped it back for Merchant#2
While topdecking Merchant make me happy, playing I.Seal WITHOUT another draw effect would make you cry and roll the table over your opponent face! It is sadistic to announce to your opponent that you are going to do something nasty BUT not quicker than the next turn...
Sigh...
I'm very conservative with my B.Wish, too.
I rarely use it for "answers" during Game 1.
On the other hand, there are a lot of situations where I found useful to gain advantage toward my opponent and I would try to draw 4 cards without any hesitance, even burying my opportunity to Storm and win.
DeepAnal is my reset button for "stalled" matches.
It is unfrequent to check for it against Aggrocontrol or MW.based decks, but it is really good against Control decks.
When you are going to draw almost all your deck, you can win EVEN with a stupid and hardcasted 11/11.
DeepAnal could help you reaching that winning point.
A few small points:
1. I see that you also included Strip Mine, like Steve. Any particular reason for this inclusion? By itself it does not seem like it would be all that effective.
I give it a try as additional tool to wish against opponent's Bazaars or MW or Academy
I 'm not too much convinced of it.
2. I am not certain that I understood the precise meaning of your section concerning a second win condition maindeck. And, kind of following that, how would you feel about maindecking 1 Tendrils of Agony? Or is it just completely unnecessary?
I usually bring in ToA during game 2 and 3.
I test the effectivness of playing the "Storm-Game" against my opponent rather than winning with DSC
A lot of games and matches are won by Y.Will.
Almost in any ones of these games, I thought about bringing in ToA.
Toa + DSC are not mutually exclusives.
If I have additional space, DSC can remain even if Tinker is sided out.
You can both hardcast it or B.Wish for Tinker if needed.
On the other hand, when I choose HOW I 'm going to win a game, I usually try to minimize the number of dead cards. I think that I played with DSC AND ToA WITHOUT Tinker, maybe only twice in my life.
But, hey.. it can happens

MaxxMatt
Last Edit--> Fixed Some Errors