Mono-Green Ramp
A Pioneer deck, by Richard Thompson
10th place at a tournament in Columbus, Ohio, United States on 2020-01-05

Maindeck:

Artifact Creatures
3 Walking Ballista (Banned in Pioneer)

Creatures
4 Elvish Mystic
4 Elvish Rejuvenator
4 Llanowar Elves
2 World Breaker

Legendary Artifact Creatures
2 Golos, Tireless Pilgrim

Legendary Creatures
1 Emrakul, the Promised End
1 Ulamog, the Ceaseless Hunger

Legendary Planeswalkers
4 Nissa, Who Shakes the World
3 Ugin, the Spirit Dragon

Sorceries
4 Nissa's Pilgrimage

Basic Lands
12 Forest

Lands
1 Arch of Orazca
1 Blast Zone
1 Cascading Cataracts
4 Castle Garenbrig
2 Radiant Fountain
3 Sanctum of Ugin
1 Scavenger Grounds
3 Shrine of the Forsaken Gods

Sideboard:
2 Damping Sphere
2 Oblivion Sower
3 Thought-Knot Seer
2 Tireless Tracker
2 Return to Nature
2 Spatial Contortion
2 Warping Wail