The goal with delver is to tempo them out, so typically a suite of very low mana counter spells works well. Good choices for that are spell snare (counter spell with converted mana cost 2) and spell pierce (counter target non creature spell unless they pay 2). I, personally, would cut a mana leak and two remands to fit those in. Additionally, whilst playing blue in modern, card filtering is your path to victory. In addition to the serum visions I recommend a playset of thought scour (target player mills two and then you draw a card). It really assists in allowing you to quickly play those gurmag's or tasigur's. Typically, Delver decks run 18-19 lands because the curve is just so low, and you really don't want to exceed three in play if it means you aren't getting the draws you need. For those flex spots electrolyze is pretty good, it lets you draw a card and potentially blap two of their creatures. Anything that is a 2 for one is good, in grixis delver never forget kolaghans command. Tap lands in delver isn't generally what you want, so those tar pits are something you may want to think about cutting. You aren't aiming for the long game, you really want to win in the early mid game, so most of the time you won't actually be activating those tar pits either. Lastly, heavily consider finding a place for young pyromancer in the main board, that card just wins games on its own. With delver's low curve and basically free spells like probe, it generates some crazy value. I didn't mean to seem overbearing if the comment comes of that way, but you said you were new to blue and looking for advice, so I figured I should oblige.

FrostedBanshee Hey, thanks a ton, man! I will certainly be looking for ways to put the cards you suggested in. I totally forgot about Thought Scour, and that'd be awesome in this deck.

I'm not totally sold on Young Pyromancer, mostly because the more creatures I run, the harder it becomes to flip Delver, which is the main goal here. I suppose I could cut some number of Tasigur, the Golden Fang and/or Gurmag Angler.

And no, you weren't overbearing in the slightest. Your comment has been extremely helpful! Thanks for helping a future blue mage!

Who knows maybe you won't like pyromancer. At least it isn't two expensive or anything, toy around with the deck see what you like. Magic is great because we don't all play the same ;). Have fun playing blue.

too not two, sorry it's like five in the morning lol.

I am having a hard time telling which way you are trying to build this. Are you wanting to go full control like patrick chapin or midrange. If midrange then drop the Gurmag Angler and throw in 2 Kalitas, Traitor of Ghet and a Pia and Kiran Nalaar. If you want control cut jace and throw in some Cryptic Commands and maybe some Ancestral Visions. Let me know where you are going with this and then I can be of more help.

sirbar I'm looking to go more midrange, and I'll look into Kalitas, but I really don't see the appeal to Pia and Kiran Nalaar. I really feel like they don't do much for the deck.

Alright that I can work with. Pia and Kiran Nalaar is good because it gives you flyers, Which you otherwise don't have, and game against affinity. I know you have Kommand(i'm going to abreviate the names because i'm pretty sure you know what i'm talking about), but if you don't draw it then the match is pretty hard. Also pia and kiran are good against other midrange decks because she gives you multiple bodies. Though I would only give her one slot.

If you are going midrange then you need to use hand disruption. Drop your Gitaxian Probes and throw in some Thoughtseize and Inquisition of Kozilek. I would run about 5 of these, maybe a 2:3 split with two Thoughtseize. Also another option is Liliana of the Veil. You don't have to run her but I would highly recommend it as it seems that budget doesn't appear to be of any concern.

Ancestral Vision in my opinion is why you run grixis over jund. I don't believe a full 4 is needed here so I would start off with three and play with the numbers a bit.

As for what to remove: Remand- all of them, Spell Pierce-all of them, Electrolyze-one if not both, Rise/Fall-one of them(good card but not worth two slots), Izzet Charm-you simply have better cards, Desolate Lighthouse-i know this seems weird but you really need your colored mana here.

What to add besides previously listed: 1-2Spell Snare-you wanna go down in counter magic in midrange. This one is a great anti countermagic card. 1 Mana Leak three leaks will save you from enchantments that you can't otherwise answer.

Cool tech I have considered for the sideboard is Chromatic Lantern. It will save you form a Blood Moon. I honestly have never tried it, but I thought it is a cool idea to try.

This deck seems to be a little bit undecided on what it wants to be doing.

For starters, I'd drop all 4 Gitaxian Probe to add 4 Ancestral Vision. Vision has been the cause of a lot of success in Grixis recently, so it'd be a shame not to run it.

Your deck is mostly counterspell-based, so I'd drop Jace, Vryn's Prodigy  ^Flip for 2 more Thought Scour. Jace is, to be honest, a little too fragile. He's a classic 'great when he works but bad when he doesn't' and in a format full of creature removal and in a deck that doesn't have many easy bolt targets otherwise, he doesn't flip very often. 2 more Thought Scour is necessary if you want to be running 5 in combination Tasigur and Angler.

4 Remand is too many. I'd cut back to 2. It's good vs opposing Ancestral Vision and is very versatile in general, but I'm not sure you want 4. 1-2 more Mana Leak would help, as would either 1 more Terminate or a 1-of Murderous Cut.

In the manabase, I'd cut the Desolate Lighthouse. I really wish it could work in Grixis, but the color concentration in Grixis is just too dense to handle it. MAYBE as a 1-of you can get it to work, although it's risky to say the least, since most of your spells require double color. Loothouse aside, I'd drop 1 Swamp for 1 Mountain (I fetch for it more often than you'd think) and drop 1 Fumarole for 1 Blood Crypt; you should really have 1 in the list.

How has Wandering Fumarole been for you? I've never tested it, but on the surface it seems kinda 'eh' since it takes a lot of mana.

This deck is begging to play Cryptic Command.

I'll get to the sideboard later. This should give you enough to think about for now. TheAlexGnan, any contradictory opinions? You play the control version more often than I, so I thought I'd check in with you too.

This may have been covered already, but is 5 Delve beaters too much? Since you only have 2 Thought Scours to aid it along, you might want to cut one or two of the Gurmag Anglers.

Desolate Lighthouse might also be too much of a strain on your mana base.

Also, I'm not sure about Rise/Fall. It seems like just a worse Kolaghan's Command.

I've seen decks like this at my Fnm and they are very consistent. I know many have been telling you to cut jace but honestly it belongs in this deck. I think Delver of Secrets  ^Flip is a good option and i think Go for the Throat and Dreadbore would be better than Electrolyze and Izzet Charm

Deathstokemarkov12 that combines 3 different decks. In the grixis colors, there are 3 different decks available: Grixis Delver, 'Blue Jund', and Grixis draw-go control. They can be identified by their key cards, Delver of Secrets  ^Flip, Cryptic Command, and Jace, Vryn's Prodigy  ^Flip. However, these decks are distinctly different play styles so combining them is not a good idea. Delver of Secrets  ^Flip is an aggressive tempo card; a deck playing Delver would never want to play Cryptic, a slow and defensive card. Likewise, a Delver deck would never play Jace, which can't attack and has no immediate value in an otherwise fast deck. Cryptic and Jace are incompatible because Jace needs to be played on your turn, while Cryptic is best sat on until the perfect opportunity. Additionally, you can't flashback Cryptic profitably with Jace.

I said there were 3 versions of Grixis, however only the draw-go version, now playing Ancestral Vision, is viable right now. And, surprisingly, these versions don't even play Cryptic Command, but they do resemble draw-go most closely. Blue Jund and Delver existed once upon a time about a year ago, but they've since declined considerably.

I've never liked Jace, Vryn's Prodigy  ^Flip in Grixis. In Grixis, you play Snapcaster Mage because of the guaranteed value that serves as an attacker too. In particular, in grixis, your opponent doesn't have many targets for their Lightning Bolts. Creeping Tar Pit is the closest thing, and that's a land. Playing Jace gives them an easy target. Perhaps if you played Dark Confidant and other fragile but high impact creatures alongside Jace, you could make it work, but that's basically an entire rebuild as well as a lot of brewing unexplored territory. I'd be happy to help you try that out since it sounds interesting, you really need to be in love with Jace to want to make it work.

bolts are the reason you reason you run counter magic. And if you play delver its just adding less value to each bolt they use. Also snap caster and jace have great synergy due to filling your yard as well as giving you card Advantage. It's not really combining different decks just because the key cards are played. Also jace is a 3 drop and cryptic is a 4 drop so I'm confused on why you are comparing them as well that Jace is not affected by a cryptic. Also if someone does bolt a Jace that just gave you fuel for your delve cards as well as saving your self from 3 damage. Also delver makes sense because it's a one drop and this list currently has none.

Out of curiosity, are the 2 snaps because of budget or are you running less than 4 intentionally?

ToolmasterOfBrainerd I run 2 because the deck is more aggro than control. Drawing too many Snapcasters isn't what I want early on or late-game. They are pretty good value, but really only at the proper time.

Basically, I just feel that drawing a 4/5 late-game is better than drawing a 2/1.

You should run vapor snag

I run an extremely similar list, but with less countermagic and more removal. How have the extra counterspells been working for you? I have found that I only want a critical mass of counters against specific matchups, and so prefer to side in more when needed. Also, why the chromatic lantern in the SB?THis is my list BTW: http://tappedout.net/mtg-decks/06-07-16-grixis-delver-copy/

stonewall13 I've been doing well with the extra countermagic in my list. I find that having too much removal in the maindeck leaves me a little less favoured against control and creatureless combo decks.

Chromatic lantern is a bit of spicy tech for blood moon decks. The lantern adds the ability for the lands to produce any colour of mana on a layer past blood moon, basically countering the effect.

I guess it depends on your local meta. I see a lot of infect and death's shadow, as well as a lot of company lists, so i built my list to be more removal heavy. It seems a little narrow, but the chromatic lantern could be really interesting against blue moon and sun and moon.

Yeah, i have a bit of skred and blue moon in my lgs, so thats what its there for.