Bohemian

You're right, it doesn't work as well. Particularly with Statecraft. Pemmin's Aura would also be an interesting addition to this. http://gatherer.wizards.com/Pages/Card/Details.aspx?name=Pemmin%27s%20Aura

That's one expensive deck you have there. For an infect deck, you sure don't have many ways of dealing infect damage. You're also really heavy on control. Simic Charm might help you consolidate a lot of your spells. Lets you bounce, buff, or protect all in one UG package. Spells like Wings of Velis Veil and Distortion Strike are also very much at home in an infect deck since they get your guys through. Hope my suggestions were helpful.

I have a deck with similar strategy to this. I recommend Sigil of Sleep over Cowardice.

https://www.mtgvault.com/bohemian/decks/momentum-modern/

Built a modern version as requested. The only thing I can't see this deck doing well against would be straight-up burn deck. It would be easily converted to a red/blue deck if you were looking for burn, specifically.

I don't normally like to build modern. I don't like the restrictions since I prefer kitchen table competitive. The theory behind my deck was plowing through cantrips that improve as you play them--keeping you spry in early game and at pace mid-late game. My variation on this might work in Modern though. I will try it out.

I've been working on an illusion deck for some time. I haven't quite worked it out yet. Think about using Unsubstantiate instead of Unsummon. It does double duty as a pseudo-counter spells (possibly ruining combos) and gives you a chance to prime your Phantasmal Image to copy something specific. Draw or sort would be really helpful since this deck leans so heavily on Lord of the Unreal. Contingency Plan is my preferred sort, and Distant Melody is great in tribal decks.

This deck is actually quite decent. It's definitely a good start. If I were to critique, I'd say that you're land heavy, and short on draw. Replacing gravitational shift with an instant that pack a punch, like Wings of Velis Vel would probably be more effective. Most of my decks involve lots of flying creatures, and I find that enchantments like Curiousity or Sigil of Sleep are absolute terrors.

Nice deck. Land destruction can be a major pain to deal with. You might want to check out Geth's Verdict instead of Diabolic Edict. Cards like Culling the Weak might also help you ramp up to cast your land destruction cards sooner/more frequently.

The quantities of your cards are kind of all over the place. I'm not totally sure what the focus is. With the amount of rogues you have, prowl cards would do you very well. Noggin Wack would give you cheap discard that would take up less of your hand than your current sorceries. Oona's Blackguard will also get you tremendous returns out of your rogues and functions as a chump block. These reusable flash faerie type decks can also be troublesome to balance the mana out. If you tightened up the card balance (x4 vs <= x3) and included a Locket of Yesterdays or Semblance Anvil. With the ratio of your cards, i think you're going to run into problems with having too many swamps as well.

Ah, I did not know that. Thanks.

I thought pauper refereed to the total cost of a deck being $30ish dollars? Curiousity is a cheap card, as it is an Uncommon. This deck already has 4 different uncommons, as built, so I don't think it's out of place.

Frogtosser does lower the Prowl cost. Prowl is a conditional alternative cost, so the cost reduction applies. It makes a huge difference. If your average CMC is 2, then gets cut to 1, you're playing twice as many spells. More critically, is that you get to put more on the board earlier, which is essential for a rogue/prowl deck. It can be a bit of a problem mid game, because your hand can't keep up with out fast you can play the cards. That's a good problem to have though. It's also necessary, as these decks become increasingly vulnerable the longer the match goes.

Check out the ruling on The Gatherer. http://gatherer.wizards.com/Pages/Card/Details.aspx?name=Frogtosser%20Banneret

Really great job with this deck. Have you played it, or is it only theoretical? Looks like it would be a total killer.

Curiosity or Sigil of Sleep would be awesome additions to this. The former would keep your hand absolutely full, and the later would keep the board wiped of creatures.

You really need to use Curiosity instead of Ophidian Eye. It's a CMC 1 blue enchantment that does the same thing, but without Flash.

I made a deck very similar to this one years ago. You really shouldn't have Frogtosser Banneret side-boarded. It is main deck x4 material. If you run a lot of prowl cards, it can easily reduce most of your deck CMC to 1. Speed is very important in these rogue decks. One thing I use to devastating effect is Sigil of Sleep. About the only thing that will stop you is a board wipe. Also, I like to run x4 Cloak and Dagger because your rogues can be susceptible to removal, it gives them a necessary bit of extra punch, and is damn near free with Frogtosser Banneret out. I really like Knowledge Exploitation, but I can't say that it's really done much for me, so I took it out. It's hard to mess up these decks, but if I were to give general advice, this one seems to lacks alittle focus. I'd tighten up your strategy a bit. If you don't want x4 of a card, you may want to rethink it.

https://www.mtgvault.com/bohemian/decks/prowling/

Cool deck. Black can be fun when it goes full tilt destruction like this. If you're not playing any creatures, Tainted Aether will do you very well. It causes players to sacrifice a creature or land every time they field a creature. Check out my "Blackmail" deck. https://www.mtgvault.com/bohemian/decks/blackmail/ It plays every similarly to yours, and might have some other ideas for you.

Nice deck. I run a deck very similar to this that is deadly quick. I like your addition of Distortion Strike. I may consider adding it. Morsel Theft is invaluable to these decks, as you noticed.

Triton Shorestalker is a great 1 mana unblockable rogue. Notorious Throng is an incredible game changer. I like to use Noggin Wack to clean-up whatever Oona's ability doesn't discard. Something to consider mixing into your deck are cheap, on-hit enchantments. I use Sigil of Sleep, and it is an absolute terror to the opponent. Curiosity is also one that I sometimes mix in, since these decks have such a low CMC that you dump your hand pretty quickly.

I have one. Got it in my very first starter pack from Shadowmoor "Going Rogue". Same goes with the Vendilion Clique. Most of these cards were purchased years ago when they weren't so expensive. I can't bring myself to buy another Bitterblossom, otherwise I'd put more in there!

I've honestly thought about removing the Scions all together, but they work well enough. I almost feel guilty with the universal shroud, and the creatures really need the bump in power to be effective attackers.

I heavily considered Quickling, but I wanted to keep my CMC down. That one mana makes a bunch of difference when you're trying to recast your hand.