Mono-Green Devotion
A Pioneer deck, by banskk
9th place at a tournament on 2019-12-01

Maindeck:
15 Forest

Artifact Creatures
4 Walking Ballista (Banned in Pioneer)

Creatures
4 Burning-Tree Emissary
4 Elvish Mystic
4 Jadelight Ranger
4 Llanowar Elves
2 Scavenging Ooze
4 Voracious Hydra

Instants
4 Once Upon a Time (Banned in Pioneer)

Legendary Creatures
1 Questing Beast

Legendary Planeswalkers
4 Nissa, Who Shakes the World
4 Vivien, Arkbow Ranger

Lands
2 Castle Garenbrig

Legendary Lands
4 Nykthos, Shrine to Nyx

Sideboard:
3 Aethersphere Harvester
3 Reclamation Sage
1 Scavenging Ooze
3 Shapers' Sanctuary
2 Heroic Intervention
2 Questing Beast
1 Ulamog, the Ceaseless Hunger