This deck is all about the Golden Guardian's and getting them flipped.
MAIN BOARD
-To do this I have included 8x deathtouch creatures (4x Narnam Renegade's & 4x Dhund Operative's). These are in the deck for a few reasons, they are low cost so we can get them out early to deter your opponent from attacking, and so that when we get a Golden Guardian on the field we can have it attack into them, instantly killing the Guardian and flipping him.
-I have also included 2x Rhonas, the Indomitable to help with flipping the Guardian's, given he is also indestructible, he will survive if we have any of our artifact pumps online.
-To round out our creatures, I have included 4x Chief of the Foundry, pumping up our Golem tokens (making them 8/8's if we manage to get all 4x Chief's on the field).
-The 3x Foundry Inspector's help reduce the cost of getting our Guardian's out, but also help us get our other artifacts out earlier/cheaper.
-And lastly, I added 1x Ghalta, Primal Hunger. Why you might ask? With all the Guardians we could have on the field, it's possible we could cast Ghalta for only 2x green. And having a 12/12 trampler is a threat your opponent will have to deal with over your Guardian's (or that's the hope anyway).
Moving onto the instant/scorcery/artifact cards.
-The 4x Blossoming Defense's are a good way to help pump our creatures when needed (to save them in combat or from some removal spells).
-The 4x Prey Upon are our low cost removal, used well with Rhonas, Ghalta, or the Guardians. They are also a good way to deal with fliers.
-The 4x Vraska's Contempt are there to help remove our opponents creatures/planeswalkers. Vraska's Contempt is also a good way to deal with the Amonkhet gods, and the new Rekindling Phoenix.
- As soon as I saw this card I knew I had to include it into this deck. So I added in 2x The Immortal Sun. This is an incredible card! It shuts down plainswalkers. It has you drawing 2x cards a turn instead of 1x. It lowers the costs of your spells. It pumps your creatures. What's not to like about this card? Well, the fact it's a 6 cost might put people off but with our Foundry Inspector's, we can get that cost down a bit (also remember its a legendary so they don't stack!).
Now onto the mana.
2x Field of Ruin's, helps with fixing, also kills off a nonbasic your opponent has.
4x Foul Orchard's, can tap for either black or green.
2x Inventors' Fair's, gives you lifegain, also lets you search for artifacts.
10x Forest's
6x Swamp's
SIDEBOARD
This side board is not finalized, I just threw it together with cards I had available and though could cover some gaps in the deck I though I might come across.
2x Duress', helps deal with counter spells if needed.
1x Silent Gravestone, shuts down graveyard recursion.
3x Cobbled Wings, the deck has no fliers or reach, so could be a good thing to have.
3x Naturalize's, for removing opponents artifacts or enchantments.
3x Plummet's, deals with fliers.
3x Aethersphere Harvester's, can add flying to our deck, very low crew cost, adds lifelink if needed.
IDEAS
Some further ideas I had that I wanted to include into the deck but couldn't find:
-a way to untap all my lands, allowing me to make more golems per turn.
-try and cut black and just go mono green or use a different color.
Please feel free to comment and make suggestions.