Magius

Thraben Doomsayer and Hanweir Militia Captain are great imo
Knight of the White Orchid is good if you can get any swamp plains split lands
also if you do switch to more plains Emeria, the Sky Ruin is great for late game
could aways get some life from Soul's Attendant or Auriok Champion if you have the money
not a very black player but id rather exile something with Anguished Unmaking or a Path to Exile than try to kill a specific type
Dictate of Erebos seems like a free pass to be aggro
but all this is if you have the cards/money otherwise i do like what you have and the kill them buy things dying is a cool twist

Seems like a fun deck to play not exactly control or burn but after a few (and a few more) turns this deck is almost instant, especially with Paradox Haze stacked. If you were planning on playing against white weenies or burn I would suggest not playing with this one ;)

I like it a lot =) it seems well built in that i could teach a new player how to play fairly quickly with this and they would stand a fair chance of winning but also in the hands of the more experienced the deck changes ever so slightly into a much deadlier version of itself. well done =)

It seems to be fairly functional by whats with all the singles? is this your actual deck or what? I would find the cards that really "make" the deck for you or the ones i like the pictures of ;) and try to weed out the ones that are "cool" or just sitting to the side. But then again i am more of a Hero of Bladehold kind of guy simple and destructive and i dont do combos that take multiple turns or dont win me the game.

Main thing that should help the most:
you have an entire blue/colorless deck except for four Tezzerets if you got rid of them for more lands (you only have 16 and you have 5 drop spells) you could speed your deck up by making it mono or add more black still add the land and make a more balanced duo of colors.
second thing that should make this comment longer:
you do realize you have 8 to 12 creatures and 8 to 12 equipment... and you have to have a creature in play to use equipment i would take out 4 Unsummmons and add Cryptoplasm or Phyrexian Revoker or Consecrated Sphinx depending on who/what you play against mostly. Black creatures could be Sangromancer or Phyrexian Crusader cause everybody loves protection =)
third thing that should be common sense:
if you take out the black (4 tezzes) then you should take out the split land also...
fourth thing that isnt a thing:
so yeah in my amazing gloriously astounding opinion that might be right you should do above and give me millions of virtual monopoly money.

But what are you going to do for mana?