I Swear, This is Fun.

As it is, it is horribly slow, though. There should at least be 4 Dark Rituals to get rolling. This deck will most likely be overrun by most creature decks nevertheless.

Shared Trauma is pretty useless (in this). And I question the Extirpates, what's their use if you are going to Haunting Echoes anyway? I would run Duress/Thoughtseize instead and add the 4th Haunting Echoes.

You'll still be steamrolled by most decks but with these changes you will at least put up a fight and might snag a win here and there. Unless they play creatures of the lower end of the mana curve, then you'll still lose. So, yes, this deck will still be annoying but mostly for the guy playing with it. I don't see where this would be fun for anybody involved.

Well with the coffers and dark rituals it would definitely he faster. Maybe add lilianas caress and megrim. it'll at least give you a damage source thats a little more reliable. also sign in blood to make the opponent draw

Also a couple howling mines and maybe underworld dreams

no, not at all.
Coffers doesn't make anything faster since you'll need them plus 4 Swamps to get any gain from it, which means it pays off no earlier than turn 5 (!). Most games are decided by that time. Megrim is horrible at 3 mana and Lilianas Caress only slightly better. See, if you waste your second turn on Caress instead of Hymning your opponent, he will drop more threats and kill you. That's the problem with Caress/Megrim: You need them in play before you start with your hand destruction but if you don't make your opponent discard asap, you'll lose control over the game.

Howling Mines are even worse, you waste your second turn on playing a card that your opponent benefits first from and that works against your discard, why should he include that?
Underworld Dreams doesn't belong here either, the plan is to strip the opponent's deck of any harmful card by exiling them via Cap, Echoes and Sacrament, if he manages to accomplishes that then it doesn't matter with what he kills, could be one of the specters, the opponent will most likely concede at that point anyway. But if you add damage dealers like Caress or Dreams (cards that don't do anything else) you will have a half-assed attempt at winning via damage and a half-assed attempt at winning via exiling cards and as a result will not be able to reach either goal.
Plus, all the cards you mentioned don't do jackshit about this deck's main problem: Opposing creatures. Take any random tribal or guild deck that most people are playing these days and let them play a random creature the first three turns each, you'll lose every single time because this deck is too slow.

Guess that's true especially with it being legacy or vintage format where everything is legal and crap like emrakul can hit turn 2. I'm not sure how you'd be able to make it much better than what you've already mentioned. still its a hilarious deck though

It is probably meant for casual play, but then that's cruel, too, because who likes to get his library being raped like this in casual? That's the main issue I have with this deck, it won't be fun in any situation :P

Well you'll have some fun at least definitely work on the rituals though maybe sol rings too. just to speed it up. only other thing i can think of would be go for the throat or something like that to kill creatures that hit the field. regardless though when the deck runs it'll be a real bitch lol

By the way do you happen to have any suggestions for my green white deck?

I think it's important to note that this deck is taged "Two headed giant". I don't think that for the format and the price of this deck that it is "too" slow. It might be a little slow, but it does what it sets out to do.

Well, in that case he has to exile TWO libraries which doesn't exactly make things faster. If they are using the rules where his partner can block for him - maybe. But despite starting with more life, 2HG usually isn't a slower format, you can get brutalized as quickly as in 1-on-1.

Not only is this made for Two Headed Giant. It is also made for playing with another special deck which is full mill. Having the ability to scan and mill the opponents' decks and then exile the better cards is a very interesting concept.

Except that the other deck runs zero defense and zero creatures. If you play these two in combination you will lose to any creature based decks that somewhat follow the mana curve.