This is my decklist for The Gitrog Monster
A Full Combo Deck for Competitive Multiplayer EDH
The Combo is probably one of the most complex combos of all times in MTG history, so if you are not an expirienced player this will be a chalenge to you.
You will need a few things to combo with this deck, first the commander, then a discard outlet and finally a dredge card. First step goal of the combo is to draw your whole deck. You can do that discarding a dredge card, discard a land or do anything that gives you a draw to begin the dredge loop, whenever you dredge a land you trigger Gitrog, answering the Gitrog trigger you discard the dredge card and activate it's dredge again, and repeat this process until you hit Dakmor Salvage, that will begin to give you one extra draw during the dredge loop and therefore you will be able to draw the whole deck. All these effects can be done in instant speed but it is not a legal loop, so you might need to do every single step until you draw the whole deck during a championship. The last cards are a little hard to draw properly, this is how you might do it:
First goal is to end with only lands and Kozi on your library. It's not an exact science but all you have to is dredge and draw a lot until you hit Kozilek, it is better to accumulate draws then draw a lot at once after Kozi shuffle. When you achieve the state of only lands and Kozi on your library, you will count the cards on your deck and accumulate that many draws and draw the whole library.
Whenever you want from now on you can do a legal loop, discard Kozi, discard a land, draw Kozi, discard Kozi to shuffle the land, use Dakmor to dredge two, trigger the Gitrog, resolve the Kozi, shuffle the land and Kozi back to deck, answer the Gitrog trigger, discard and dredge dakmor, acumulate any number of Gitrog triggers on the stack, resolve the Kozi trigger, then resolve both Gitrog triggers and draw the cards from library. That can be used to cast any instant on the deck as many times as you wish, all you have to do is answer the Kozi trigger with the instant you desire with enough draws on the stack (usually 3). This is the legal loop for Gitrog.
The second step of the combo is to generate infinite mana. With this deck you can generate infinite black and green mana in instant speed. To do so, after you drew your whole deck, exile the Elfish Spirit Guide, use the green mana to Cast a Crop Rotation, if you can, sacrifice a land that generates one black and do not enters the battlefield tapped, that will trigger the Gitrog draw, discard Kozi to shuffle it and the land back on the deck, At this point if you sacrificed the correct land just resolve the Crop Rotation and put the land on the battlefield untapped. Case you don't have that land on the battlefield, discard one before the Crop Rotation resolves, draw either Kozi or the sacrificed land, if it is the land discard it and draw Kozi, discard Kozi to shuffle all 3 back to library, resolve the Crop Rotation and put the land on the battlefield untapped. Finally use the technique previously explained to redraw all your library cards back.
Continuing our quest for infinite mana, you have to accumulate two Gitrog triggers on the Stack, answer the second Gitrog trigger casting Dark Ritual, resolve Dark Ritual, discard dakmor, dredge, resolve the Kozi trigger, at this point there are three Gitrog triggers on the stack, you will have exactly three cards on your deck, resolve the three Gitrog triggers, draw the 3 cards back again and repeat it to get infinite black mana, and remember, all this is still on instant speed.
Ok, we have infinite black, now we need infinite green mana, and that is easy, all you have to do is cast a Rain of Filth, discard Lotus Cobra, use a Shallow Grave to reanimate the Lotus Cobra, discard Kozi to get it to deck, discard Drownyard Temple. From this point on is where you begin the loop, draw the Kozi (the first time might be the Rain of Filth or a Shallow Grave, which is fine), pay 3 black to return Drownyard Temple to the battlefield, discard Kozi if it is in your hand and and there are no cards left in library so it returns to deck, generate 1 green from Lotus Cobra, sacrifice Drownyard Temple with the Rain of Filth effect, then loop. Just a reminder, all this is still on instant speed.
Now that we have infinite green and black mana on our mana pool, we can begin the killing process. You should have Drownyard Temple on the battlefield after the last loop, also no cards on your library. We begin the last part of the combo by shuffling Kozi and discarding Rath's Edge, draw Kozi, discard Kozi, shuffle both to deck, cast Crop Rotation sacrificing the Drownyard Temple, return Drownyard Temple to the battlefield, draw a card from the gitrog trigger, on this first time might be Kozi or the land, if it is the land discard it and draw Kozi, discard Kozi, shuffle both, if is Kozi no problem, on other iterations there is only Kozi to draw, the first time you will have to draw an reshuffle Kozi and Rath's Edge back to Library until you draw Kozi. After Rath's edge is on your library, resolve the Crop Rotation, put the Rath's Edge on the battlefield. Now we have to get Crop Rotation back, easiest way is to use 2 cycle lands, acumulate 4 draws and shuffle Kozi and the Crop Rotation and the lands, then draw the 4 cards. This is the legal way I came up to do infinite damage with Rath's Edge.
The whole deck is focused on getting the combo asap, preferably until the 4th turn. You have 12 tutors that can get at least one discard oulet or a dredge card and 16 cards between tutors to either a dredge or discard outlet, 8 for each. That puts the deck in a 20% chance of getting one piece of the combo per draw, which means 1/5 cards will be a combo piece or a tutor for a combo piece, since our goal is the fourth turn, this means almost certain to posses the necessary cards to either combo or tutor the combo with the 10 cards we draw from the 1st turn until the 4th, but the deck still combos consistently on the 3rd turn.
What differs this list from most lists is it's consistency to combo using Golgari Grave-Troll or Stinkweed Imp. To do so we use 42 land cards on our deck, and most of them replace elves and other dorks trying to ramp us a little while maintaining Gitrog interactions. The success rate for each dredge 5 to generate a draw is 93,67%, which means you will most likelly dredge 15 times before you fail, or 75 cards. When we consider that probability with the dredge 6 it goes up to 96,36%, which means you will most likelly dredge 27 times before you fail, or 162 cards. This gives a really high chance to win with a dredge 5 card, because all you have to do is reach the dredge 6 and continue or the Dakmor, which is a win in instant speed. The other difference from other lists is the fact that I don't rely on dorks, I rather rely on lands that ramp me while still helps my combo consistency, such as Peat Bog and Hickory Woodlot. I know it is possible to go more control, and it is probably worth it depending on your meta, and in that case I would remove a few junk tutors such as Diabolic Tutor and Mastermind's Acquisition, but I like being the full combo, uncontrollable, and if that is your style as well this list is made for you.
If you want to learn more about Gitrog I strongly recommend using the lab maniacs video with Leptys, I learned a lot from him and his guide is way better than mine, his list can be found here:
http://tappedout.net/mtg-decks/gitrog-land-combo/
Thank you all!!!
