There is no need for that obsidian pillars.. if you take them out, the deck'll be smaller. Take out 1 steal, 4 of them is kinda over it. Take out a nightfall, 2 is enough.
If you took that all out, your deck should now look like this..
:
5um 5um 5um 5um 5um 5um 5up 5up 5up 5uq 5ur 5ur 5ut 5ut 5ut 5ut 5ut 606 606 606 606 606 606 606 606 606 606 622 622 622 622 622 622 7ta 7td 7um
Your deck is now smaller, good for pvp's.
Note : For oty decks, swap any card (most preferably a devourer or two) for a Drain Life.
Edit 'n note number 2 : To make it EVEN smaller, take out a devourer and a vamp. 33 cards. I wouldn't recommend it that much, but one way or another it would work.
Also, to imrpove what Hrmmm said.. a deck picture.
5um 5um 5um 5um 5um 5um 5up 5up 5up 5up 5uq 5ut 5ut 5ut 606 606 606 606 606 606 606 61o 61o 61o 61o 622 622 622 622 622 7ta
Or like he said, swap the steals for drain life(s), vamp stilletos or dusk shield.