Creature(15)
2 x Walking Ballista
2 x Scrapheap Scrounger
3 x Chief of the Foundry
3 x Foundry Inspector
3 x Esperzoa
1 x Padeem, Consul of Innovation
1 x Herald of Anguish

Instant(3)
3 x Fatal Push

Enchantment(6)
3 x Tezzeret's Touch
3 x Efficient Construction

Planeswalker(3)
1 x Liliana, the Last Hope
1 x Tezzeret the Schemer
1 x Ob Nixilis Reignited

Artifact(14)
4 x Renegade Map
1 x Heart of Kiran
4 x Alchemist's Vial
2 x Smuggler's Copter
2 x Aethersphere Harvester
1 x Skysovereign, Consul Flagship

Land(19)
4 x Island
2 x Sunken Hollow
4 x Swamp
2 x Drowned Catacomb
2 x Westvale Abbey
3 x Aether Hub
2 x Inventors' Fair

Creature(17)
2 x Walking Ballista
2 x Bomat Courier
2 x Syndicate Trafficker
4 x Reckless Fireweaver
2 x Scrap Trawler
2 x Pia and Kiran Nalaar
3 x Sly Requisitioner

Instant(3)
3 x Unlicensed Disintegration

Enchantment(4)
2 x Pia's Revolution
2 x Tezzeret's Touch

Planeswalker(3)
1 x Saheeli Rai
1 x Tezzeret the Schemer
1 x Chandra, Flamecaller

Artifact(13)
3 x Renegade Map
2 x Implement of Combustion
2 x Alchemist's Vial
1 x Servo Schematic
2 x Smuggler's Copter
2 x Aethersphere Harvester
1 x Skysovereign, Consul Flagship

Land(20)
1 x Island
3 x Swamp
2 x Smoldering Marsh
6 x Mountain
2 x Sulfur Falls
2 x Drowned Catacomb
2 x Dragonskull Summit
1 x Inventors' Fair
1 x Aether Hub

Creatures: 18
2 x Bomat Courier
2 x Abbot of Keral Keep
4 x Reckless Fireweaver
3 x Stormchaser Mage
3 x Esperzoa
3 x Thopter Engineer
1 x Jori En, Ruin Diver

Spells: 22
2 x Renegade Map
1 x Heart of Kiran
2 x Smuggler's Copter
1 x Throne of the God-Pharaoh
2 x Alchemist's Vial
2 x Aethersphere Harvester
2 x Fevered Visions
1 x Saheeli Rai
2 x Fleetwheel Cruiser
3 x Efficient Construction
2 x Start Your Engines
1 x Chandra, Torch of Defiance
1 x Skysovereign, Consul Flagship

Lands: 20
5 x Island
8 x Mountain
2 x Wandering Fumarole
1 x Westvale Abbey
2 x Sulfur Falls
1 x Inventors' Fair
1 x Aether Hub

3 * Tide Drifter // stealing Nomad’s Cucho’s idea.
2 * Whir of Invention
3 * Efficient Construction
3 * Reverse Engineer


3 * Vile Aggregate // this gets very big with Sigil equipped.
2 * Ghirapur Aether Grid


2 * Fevered Visions
1 * Saheeli Rai


2 * Walking Ballista
2 * Merchant's Dockhand // 1-drop with an awesome ability for this build.
2 * Universal Solvent // 1-drop that might have some late game relevance.
4 * Renegade Map

4 * Consulate Skygate
1 * Sigil of Valor // this lets us hold back out tokens and walls and still attack hard. Good on a flyer but potentially devastating on the Aggregate.
1 * Throne of the God-Pharaoh // Combos with Grid.
2 * Key to the City // makes Aggregate or Sigil-equipped creeps unblockable and generates extra card draw (thanks Nomad!)
2 * Aethersphere Harvester // perfect defense card.
1 * Tamiyo's Journal

Land (20):
2 * Wandering Fumarole
2 * Sulfur Falls
1 * Westvale Abbey // another potential use for those tokens
1 * Inventors' Fair
12 * Island
2 * Mountain

Notes:
Use the tough creeps to stall the game while you look for combo pieces. Hold off on fatal blocks until your life is at the halfway point, tho - if the opponent is swinging with one bog creep and holding back lots smaller creeps because they can't push through your walls, you prolly come out ahead keeping those walls alive for as long as possible and trying to get a token engine online to chump the fatties. If you find Grid, use it defensively at first, tapping on your opponent's eot or combat step and prioritizing managing his board over shipping at his health. Sigil on Aggregate is the biggest damage combo, but if you get Grid AND Throne out, you can do 3 damage per pair of arti creatures, so think about shifting to offense if that combo comes out (tapping on your own turn to get damage from Throne). Don't bother cracking Maps unless you still feel you need more land - every artifact helps for improvise and Grid damage.

Artifacts (19):
4 x Renegade Map
4 x Implement of Combustion
4 x Alchemist's Vial
3 x Filigree Familiar
4 x Implement of Examination

Interaction (14):
4 x Metallic Rebuke
3 x Lightning Axe
2 x Imprisoned in the Moon
1 x Kozilek's Return
1 x Radiant Flames
3 x Unlicensed Disintegration

Enchantments (7):
2 x Pia's Revolution
3 x Efficient Construction
2 x Thopter Spy Network

Lands (20):
2 x Drowned Catacomb
2 x Sulfur Falls
2 x Dragonskull Summit
7 x Island
6 x Mountain
1 x Swamp


Game plan: Use cantrips and Maps as required to hit land drops early, leaving them on the field where possible to enable Rebukes. Efficient Construction is critical - after it's down, cantrips make for a limitless supply of chump blockers. Spy Network functions as a slower EC for the most part, but its card draw leads to cantrips leads to more EC thopters.

Pia's Revolution can lead to early wins if Opp gets greedy and denies artifacts. Doesn't take many bolts to the face before Disintegrations and thopters can sneak in the last few points. If Opp opts out of the bolt-to-the-face program, the cantrips just come right back and make EC thopters on the way.

Lightning Axe does a nice job of making late game Rebukes look less awful, and Disintegration played well enough to justify the splash for it alone.