Looks like a solid deck, I'm not to fond of the none green lands your running. Cathedral of War and Sejiri Steppe slows you down and might keep you off double-triple green mana when you need it around turn 3-4. Inkmoth Nexus is a huge improvement for the deck, and if you like it you really should invest in a playset, it's more or less the only real cost in the deck unless you want to splash another color and need shocks/fetches. Another great card for this type of deck is Gitaxian Probe as it cycles and lets you know if you can go all in on a creature this turn.

This is my current FNM deck and it's been doing rather well for me. Have a look if you want, it's not to much of an investment :)Mono Green Infect

Hi Jojja, thanks for your feedback :)

Inkmoth Nexus will certainly make it in once I've decided to make this my new staple for FNM ;)Very good point on the Gitaxian Probe . I think after getting the Inkmoth I could probably drop some creatures to get the Probes in.

As for the lands until now they served me very well by either securing a creature to get through (Sejiri Steppe ) and/or to make the one creature you pumped on turn 2-3 even more deadly with Cathedral of War . Lack of green Mana usually isn't an issue.

Yeah, it does look infected... +1 from me!

I think Rogue's Passage might help you

Requiring 5 lands to use is a huge cost for the ability -- most games won't go that long. Also, any more than the eight colourless-producing lands might be a bit much.

The mono green infect decks should not try to get unblockable. Thats what the blue splash in this type of deck is for. It's much more effective doing it that way.

I would however recommend swapping Ranger's Guile for Predator's Strike since green will do Trample very well. I'm also a big proponent of Wild Defiance for grinding matches. That way even your protection spells become pumps and your opponents who play controlling decks cant bolt/snap/bolt your creatures. Making you immune to almost all spot removal that isn't Path to Exile .

If your interested in a way to splash blue in a fairly inexpensive way, have a look at the land base I'm running. The 4 shocks costs a little, but it's a good investment since they will go up soon after RtR rotates. And the other 8 duals are very cheap, I don't know their cost in $ but they cost me about the same as 2 of the shocks:
G/U Infect

Best of luck with the deck. It seems super fun to play!

How about Vines of Vastwood instead of Ranger's Guile .

Thanks for the comments all.

@Kossie, as Krosan pointed out the Rogue's Passage is a bit heavy on the lands that are required and for a green infect deck I think trample is the way forward :)

@Jojja: I'm currently leaning towards Ranger's Guile as spot removal protection. I would really like to get Wild Defiance in there somehow, but in the games I played I much preferred effects with an immidiate effect on the board. For three mana I can usually get Rancor + Might of Old Krosa + Another buff spell out to end the game.
I'll have a look at splashing blue in for another variant of the deck.

@e1runyon: The deck already sports 4 Vines of Vastwood . Thx anyways for the suggestion :)

Some other, cheap green spells to deal with control decks are Guttural Response and Avoid Fate . I keep those handy when I'm playing heavy control and Apostle's Blessing isn't enough. Being that this deck, and mine, are very creature light, those counterspells can be brutal if they go unchecked.

Very nice listing; +1!

It looks very efficient and consistent. I like the idea of replacing Blight Mamba with more pumping spells, which also allows less green-mana producers and more copies of Cathedral of War (although entering tapped might slow down the deck?)

It also confirms my belief that you can remove Giant Growth from an Infect deck. Also, thanks to Doom_of_Valyria: I did not know about Avoid Fate , that card looks awesome!

4 Cathedral of War is definitely going to hurt consistency. It enters tapped, and it can't help pay for any of your pump spells.

Wild Defiance is potentially mainboardable (I think that's a word). It makes Vines of Vastwood much easier to use if you don't have 2 green open, and it has very nice synergy with Apostle's Blessing .

Livewire Lash is also good, because it turns your pump spells into direct damage.

Yeah, I am mainboarding 2-3x Wild Defiance : if an opponent's Spellskite steals your own pumping spell from one of your critters, it can't stop the Defiance granting +3/+3. Also, if an opponent attemps to remove my critter and I cast the Ranger's Guile in response giving it hexproof, it will get +3/+3 twice, ie +7/+7 for G...

Add blue for Blighted Agent , Distortion Strike , and Gitaxian Probe .

And replace the 2 Ranger's Guile for 2 Wild Defiance mainboard.

If you wanna check it out, here's my U/G list:

I run Back to Nature in SB; a lot of decks have enchantments mainboard...

Going with Wild Growth for the mainboard as some people suggested. Was very hesitant about this (see above comments) but let's see how this goes. Thanks MattTheNinja, Abubroki and Programmer_112

@Programmer_112: Also good point on the Cathedral of War . I definitely had some games with 3 Cathedrals but no green mana open. Considering going down 2 Cathedral and just adding two Forests, except someone has a better suggestion?

U/G is still an option, but I don't really feel it's needed atm :)

How about 1-2x Tectonic Edge or Ghost Quarter instead of the last 2 Cathedral of War ?

Finally splashed some blue for Blighted Agent , Distortion Strike , Gitaxian Probe at my last FNM.

Without going all the way and adding 4x Noble Hierarch and Fetchlands this makes the deck too slow and inconsistent in the very competitive environment of my store (Went up against Affinity and Merfolk etc.).

Also playtested different variants of the deck with the 1 Noble Hierarch I got and Birds of Paradise but didn't like any of the changes over my original listing.

Very interesting comment MoraxMarbas: I was thinking of changing from my monogreen Infect build, 10 Neurotoxins (monogreen Infect), to GU with 2x Birds of Paradise , no Noble Hierarch , 4x Breeding Pool , 4x Yavimaya Coast , 2x City of Brass , 2 Polluted Delta (from KTK presentation), (and the usual 4x Inkmoth Nexus and 2x Pendelhaven and 2 Forest), until I can purchase 4x Wooded Foothills ... Is it more slow than the monogreen due to being mana color screwed?

Being mana screwed was definitely one of the issues. Without fetches and Noble Hierarch we have no easy way to fix our manabase should we draw badly. Chipping away your own life with Yavimaya Coast and City of Brass (which I also included) can also take you too low against other fast aggro decks. It's absolutely viable, but far from perfect.Also getting mana screwed means your creatures might sit idle for a turn if you can't fuel Distortion Strike , which is really bad news.

Also the infect mechanic really likes cards that have an immediate effect on the board (Also the reason why I was hesitant about Wild Defiance at first). Birds of Paradise do nothing for one turn while Noble Hierarch and even Cathedral of War always pump your Glistener on turn 2. Which is 10% of your damage right there.

As it is I'll take my Rancor + Cathedral of War + X Turn 2 over just casting Distortion Strike + X (assuming blockers). With the Noble Hierarch on board I'd be more inclined to favor the second option though, which would again require fetches to guarantee both colors on turn 2 ;)

Roger that; I'll stick to monogreen then until I get the Hierarchs (long wait...)

Wither and DIE!!!!! checkout my infect man..... yours looks fast

I run a very similar deck to this. T 2 wins T 3 - T 4 all the time. green black however. i would recommend a lot of black cards to you if your interested but i'm sure you wanna keep it mono green, for some reason. One of the things i noticed in my experience Is just how often you can have a opponent at 9 poison counters say turn 3, then all of a sudden you just can't get through anymore. In my play testing i always run Livewire Lash over Wild Defiance . (i also recognize this was mentioned before but i don't think it got enough justice.) both are developments to a later game strategy and both are dead play's at first. True wild defiance can put your creature out of burn range, but that's the only removal it will help against. Kills spells will still knock it out. live wire lash will normally help in the same manor because there too close to dead to risk targeting it. It can also work as surprise motha ucka moment! say they try kill the creature and you already got them at six. they take two from there own action and you pump once and there done. wild defiance just can't do that. in those grindy games i know livewire can win games. and can somtimes be the only viable option left in some control match ups. sometimes i look to it as my best alternative even over apostles blessing. what if they put a Pacifism on your creature... Just saying. or tempo your creature out with a Crippling Chill . I've seen many decks like this and livewire lash every time never seems to get the love it should have... i don't know if i'm missing something here but i just think its better.

hahaha my deck has the same name as yours but you should check out mine very simliar to yours plus 1 from me.also tried to tag my deck but wouldnt bring it up.