Mono-Green Tron
A Modern deck, by Christopher Grebe
3rd place at a tournament in Levittown, New York, United States on 2019-09-01
As reported at http://www.starcitygames.com

Maindeck:

Artifacts
4 Chromatic Sphere
4 Chromatic Star
4 Expedition Map
3 Oblivion Stone
2 Relic of Progenitus

Artifact Creatures
2 Walking Ballista
3 Wurmcoil Engine

Legendary Creatures
1 Ulamog, the Ceaseless Hunger

Legendary Planeswalkers
4 Karn Liberated
4 Karn, the Great Creator
2 Ugin, the Spirit Dragon

Sorceries
4 Ancient Stirrings
4 Sylvan Scrying

Basic Snow Lands
4 Snow-Covered Forest

Lands
1 Blast Zone
1 Ghost Quarter
1 Sanctum of Ugin
4 Urza's Mine
4 Urza's Power Plant
4 Urza's Tower

Sideboard:
1 Crucible of Worlds
1 Defense Grid
1 Ensnaring Bridge
1 Grafdigger's Cage
1 Mycosynth Lattice (Banned in Modern)
1 Sorcerous Spyglass
1 Tormod's Crypt
2 Thragtusk
3 Nature's Claim
2 Surgical Extraction
1 Emrakul, the Promised End