A few formats back I was running a Dark Gaia Turbo deck that borrowed heavily from an OCG deck. It was a ton of fun and was getting more consistent every time I tweaked it. Then Reasoning and Monster Gate were restricted to one and the deck was effectively destroyed. I've been wanting to take another crack at Dark Gaia and the new Koa'ki Meiru monsters have finally given me the inspiration to do so. I know this deck needs a lot of work, especially the Rock monsters, so any and all suggestions/criticisms are welcome.

Monsters
Fiends
1 Gorz, the Emissary of Darkness
2 Evil Hero Malicious Edge
1 Evil Hero Infernal Prodigy
1 Evil Hero Infernal Gainer
3 Koa'ki Meiru Doom
1 Dark Tinker
1 Dark Resonator

Rocks
3 Koa'ki Meiru Guardian
2 Legendary Jujitsu Master
1 Morphing Jar
1 Mormolith
1 Gigantes
1 Neo-Spacian Grand Mole

Support Monsters
1 Elemental Hero Stratos

Spells
2 Dark Calling
2 Book of Moon
2 Enemy Controller
1 Future Fusion
1 Lightning Vortex
1 Monster Reborn
1 Brain Control
1 Heavy Storm
1 Giant Trunade
1 Mystical Space Typhoon

Traps
3 Threatening Roar
2 Bottomless Trap Hole
1 Torrential Tribute
1 Mirror Force

I made some edits while pulling this deck together today to take advantage of some of the mind games that Koa'ki Meiru Guardian can let me play. I had already decided to add Morphing Jar so I thought it would be interesting to have Koa'ki Meiru Guardian on the field and reveal Morphing Jar for Koa'ki's cost. At a later point in the duel I can set a monster and a backrow, possibly Heavy Storm, since my opponent is now thinking I have Morphing Jar set. This opens up the possibility for me to set Legendary Jujitsu Master to punish my opponent for attacking into what they think is Morphing Jar. If I can follow that up with a Heavy Storm to clear out their back row it would be even better.