+1 from me. i like what you've done but have a couple questions.

How has the mana base worked out for you? 26 too little too much? and how have the life lands paid off?

2nd - how has Jorubai Murk Lurker worked in the SB. I've thought long and hard about adding him in but im not sure yet.

Check out my Grixis Build if ya get the chance - Bolas' Return, Grixis Control. (Top 4 12-2-14)

Sorry to say but this is build from scratch atm and still in need of being tested. My reason for 26 land was that i often had manaissues at 25(lacking land drops). I'm hoping going to 26 solves that. My reason for lurker is plainly as a form of lifegain. It was that or Pharika's Cure just don't have the feeling more doubles in color will work. Just hoping together with all counterspells it will slow burn down enough. Lurker will hopefully always be a 2/4 body ll capable.

run some Bident of Thassa to force all his creatures to attack then AEtherspouts to get all the creatures. is fun combo

true AEtherspouts+Bident of Thassa would be fun but i lack creatures for Bident even postsideboard.

Very well thought out. i especially like the explanation for side board swapping. that part always eludes me. i normally wouldn't consider Pearl Lake Ancient but i feel it runs pretty well considering its cost. +1

Instead of running Jorubai Murk Lurker, why not just run some Bile Blight or Drown in Sorrow instead? You will normally want to keep up the mana, so spending it to gain a couple points of life isn't ideal. I would also personally run more of the scrylands over the lifelands or basics, since they will help with your consistency.

My reason for running Jorubai Murk Lurker is that again aggro my biggest issue issnt thair creatures but their burn cards. i have enough cards at my disposel to deal with it. Chances are bigger that i get burn to 0 then that creaures do that. Murk Lurker grands me a 2/4 body(atleast it should) and a consistend 2life per turn. if i deside to keep it for defend 2p takes out most things aggro runs.

btw giving LL to Ancient seals games.

sry forgot to vote for the suggestions on Bile Blight and Drown in Sorrow

while both cards are good in their own way Bile Blight to me does nothing Lightning Strike doesnt already do. while their are time blight would do better i cant see em. it kill multiples but only of the same name meanst tokens but those that you see are only 1/1s witch we have Circle of Flame for from the side. if i would need it for dg reduction im losing sooo...only occasion its better would be against Espeth tokens but thats vs control where we wouldnt even side em in.

Drown in Sorrow i did try this one because 6 sweepers sounded great. tryd a couple of games but with already 4 Anger of the Gods+ 2 AEtherspouts drown was overkill.