In modern u face many infinite lifegain combos that are avaliable in the format. You should consider running Bitter Ordeal as a win condition because if someone gains infinite life u ain't gonna kill with Grapeshot . Milling the entire deck of your opponent is effective EVERYTIME. It's just one more mana and u pay for a guaranteed win

That's the same reason for which i run Blue Sun's Zenith as a win condition instead of Banefire in my Modern Eggs deck. You can't rely 100% on dealing direct dmg

I am, in fact, able to do infinite damage as it is. So infinite life isn't a problem, unless it's at instant speed.

Only 1 deck can do this: Birthing Pod. However, I have 8 removal spells in the sideboard to combat this.

I might consider running running Bitter Ordeal over Purphoros, God of the Forge in the sideboard. Not in the mainboard, however, because of the lack of synergy with the Transmute mechanic I'm utilizing.

Bitter Ordeal can't be spell snared

Neither can Purphoros.

I love the look of this deck. I've played modern for a while, and thought storm was dead or tier 3, but you sir, have just proved me wrong. This looks super fun, and I have almost all the pieces already. I might just try this out!

Really cool deck. I like the idea. How have your tests gone since adding Dimir Infiltrator ? 8 tutors seems like a lot to me, and tutoring can be very slow in Modern, even with 3 CMC tutor cards. That turn 3 you spend tutoring could cost you the game. Also, you're having to show your opponent what you're tutoring for. Have you thought about scaling back to 4 tutors and adding 4x Serum Visions ? It would balance out your mana curve (right now you have very little to do on turn 1, and a turn 1 serum visions is a really great way to start the game). You should have enough mana fixing here to run it.

Hmm. 8 tutors has been fine, but maybe that's just my meta. I definitely see what you're saying and I think I'll take it.

I've always hated Dimir Infiltrator anyways.

I was also thinking that Blood Artist would make a perfect addition to this deck. You don't even need a Grapeshot if you have Blood Artist down. Just have them lose life until they die with your Heartless Summoning + Myr Retriever combo.

Now for sideboard, since you asked:

Have you been able to actually use Pact of Negation ? It's an awesome card, but it seems like that UU is going to be hard for you to swing with only two lands that can tap for blue, and at 5 CMC, your entire turn 6 is going to be spent on the counterspell. That essentially leaves your opponent a full turn ahead of you at a time in the game when you should be securing a win if you haven't already. Maybe don't take it out altogether, but some better sideboard tech might be Swan Song .

I would also think about swapping your Duress for your Inquisition of Kozilek if you've got them, since that will knock out a good 95% of the cards played in Modern. If you have room to mainboard Duress , but you have Inquisition of Kozilek s, you should definitely go with the inquisitions in the mainboard since they have a lot more valid targets than Duress . Especially with Delver of Secrets  ^Flip and Tarmogoyf decks being so popular at the moment.

If Kiki-Jiki, Mirror Breaker or Splinter Twin decks are popular in your local meta, think about sideboarding Illness in the Ranks , as that card on its own can completely hose those decks. Their Deceiver Exarch and Pestermite tokens are rendered totally useless by that dinky little one mana enchantment.

If you can tell me a little more about what you've been playing against, I might have other ideas for sideboard stuff.

AH--forget Blood Artist . It would die from Heartless Summoning . That'll show me to think I came up with something brilliant.

Pact of Negation is mostly for when I go off and they have a counterspell. I win that turn anyhow, so paying the cost usually doesn't matter.

As far as Duress , I'm using it because it hits Cryptic Command game 1. Also, I combo just as fast as Twin or sometimes Storm. I'm not scared of creatures until game 2 when they have hate.

If you hate Spell Snare so much, you might consider boarding in Dispel s or Guttural Response s. Just a thought.

I have Pact of Negation for that

Summoner's Pact , or Preordain seem good additions.

@luisserpa Preordain is banned in Modern

Summoner's Pact only searches green creatures unfortunately.

Ups, sorry about that, didn't notice that part. I also didn't know it was banned, sorry again, this was really an epic fail. Still, the deck is awsome

No problem, and thanks!

I would say add Dig Through Time because it is a great way to find combo pieces. If you are not on a budget, you could just add more fetches for Swamps, like Verdant Catacombs or Marsh Flats to get the 2 Watery Grave . Or, you could just try to add normal blue sources like Steam Vents .

I thought about that... but the life loss you're taking is already pretty large. I was starting out games at 12 or less life with fetch, shock, Wraith, Thoughtseize, etc. So I cut down a bit on that.

I might add 2 Steam Vents for Dig. What would you cut FOR Dig Through Time ? Maybe the Shred Memory ?

alternative finishers nobody mentioned yet could be Falkenrath Noble, Golem's Heart, but yours are better in most situations I guess.

I'd replace at least 3x Shred Memory with 3x Muddle the Mixture. An extra counter could mean more than exiling cards in graveyards, especially if you don't happen to find Pact of Negation :)

I thought about Muddle the Mixture. And while it does do more things, and better things, than Shred Memory, the mana doesn't support it. I could go an alternate route with this deck and make it more blue for better cantrips and such, but at the moment, this is the deck.

If I did use Muddle the Mixture, I'd also use Sleight of Hand and things like that in order to utilize blue more. It'd require an entire deck rework to fit one card. So, at the moment, Shred Memory unfortunately stays.

Drop Street Wraith and Shred Memory for more destroy or counters. Transmuting for Desperate Ravings is well... underwhelming. Try Terminate or Mental Misstep to counter Spell Snare or something equally annoying.

Shred Memory tutors for every part of the mainboard combo, actually. Terminate was in a previous version, and having removal in the deck wasn't very good. However, Pact of Negation might find its way into the deck somewhere.

4 gitaxian probe over the street wraith. also I'd take out one shred memory for a fourth heartless summoning. shred memory sucks up mana. I think your digging needs work, and I think three copies of treasure cruise would help you get the two myrs more consistently.