I'm assuming you're playing Oloro, Ageless Ascetic so here are some suggestion:

Replace Doom Blade for Go for the Throat (Go for the Throat hits more problematic stuff)
Get back that Pristine Talisman it's an actually great card with Oloro.
Suggestion to gain more life and to use this life gain to your advantage: Blind Obedience , Erebos, God of the Dead , Drogskol Reaver , Necropotence , Phyrexian Arena , Exsanguinate , Words of Worship , Kokusho, the Evening Star , Kuro, Pitlord

Cut: Sharuum the Hegemon , Sydri, Galvanic Genius , Tidehollow Strix , Sharding Sphinx , Guildgates (Get as few Enter the Battlefield Tapped as you can, and the one that does are better has some 2ndary effect), Curse of Shallow Graves , Thopter Foundry , Filigree Angel .

I really like Oloro, Ageless Ascetic , I have a similar deck cause I bought Eternal Bargain too, but I've chosen to develop it in the lifegain/extort way.

Every lifegain lets me draw a card with Oloro, Ageless Ascetic in the battlefield, this makes the deck more efficient.

My win conditions are Vizkopa Guildmage /Sanguine Bond +Exquisite Blood , then Felidar Sovereign or Test of Endurance ..it may seem a little cowardly to win with a Test of Endurance but these cards work very well with lifegain, so it's a sin to keep there out!!

Can I ask you why you removed Greed !?!?I think it's a wonderful card for this deck, you should try Erebos, God of the Dead too, if you can..

You can check my deck if you want and if you like it..http://tappedout.net/mtg-decks/oloro-pillowfort-extort/

I agree with you agGravity for all that you say, but I think that Tidehollow Strix is a good blocking creature at cc2, I would not cut it!!

Let me present you the all better version Baleful Strix . I'm really sad they put this badboy in the Grixis Color, they have all the value and there is nothing Esper like an Baleful Strix

you're right, but I do not have enough money to spend on that bird =))

@Nemesis8 not so long ago, this card was 25$, it dropping to 10$ is godsend. Also I'm not a fan of the alternate win with life total.

Also I remembered Chalice of Life  ^Flip

@agGravity if you're talking about Felidar Sovereign I don't like it either, but I don't know other ways to win with this deck so I play it..however I have put aside cards like Sydri, Galvanic Genius , Sharuum the Hegemon , Thopter Foundry to build another Esper Artifact deck, it seems to be more fun.

Agree with Chalice of Life  ^Flip , great with Magister Sphinx .

Nemesis8 I replaced Greed with Underworld Connections . will be adding Phyrexian Arena to the mix as well. Greed required two mana and 2 life to draw 1 card, although good Underworld Connections does the same thing, for 1 less life and mana, same with Phyrexian Arena .

Chalice of Life  ^Flip i will be adding. the Pristine Talisman i took out, because there is just way better ramp available for the same cmc, that 1 life in playtesting was miniscule to the grand plan. most likely adding Darksteel Ingot to replace the talisman.

replacing Curse of Shallow Graves with Undead Alchemist to mill and produce tokens, easier to reanimate as well, he would be a champ if I can get Thassa, God of the Sea or Rogue's Passage in this deck

cards I am also considering adding:

Thassa, God of the Sea - scry 1 every turn with all the draw engines can be very powerful.

Ashiok, Nightmare Weaver - hes a powerhouse in standard control, I think he can be even bigger in EDH

Nightveil Specter - adds devotion, gives me a flier, and starts stealing card. also triggers off Sun Titan

I'm no EDH expert, but I'm pretty sure that in a deck with an average CMC of almost 4, you don't want Dark Confidant . I get that you gain a bit of life back every turn, but if you hit Omniscience with him, you're screwed. Duskmantle Seer (or OmniBob, as I like to call him) may work as he hurts the opponent more than you, but I don't think Bob has a place in here.

thanks for the feedback. I was thinking the same thing. Would you recommend putting in Howling Mine + Underworld Dreams then?

Have a look at Sharuum, Oloro's Artificer, my artifact heavy version of Oloro deck.

I think that more card draw with Oloro is just wasted. He is a very reliable source of card advantage. You can nearly always get him back into play. (black have tutors!).

If you would like to focus more on the life gain, you should choose a pillow-fort / tax scenario.

And extorting dudes are awesome with Oloro.

made some changes. totally forgot about Archangel of Thune . Her combined with any of the token generators, can make a formidable army really fast.

how much more money do you think you put into it after you bought it, i need to improve mine but i dont have a very large budget

I ended up putting about $100. You can be fairly budget and still make it good

thats good, im just starting out with edh so i thought it would be good to build off a premade one

Another combo: Serra Avatar and Wall of Reverence. On my first game w/ commander deck, I got to 135 life w/ the two of them!