Hardened Scales
A Pioneer deck, by Jason Threet
3rd place at a tournament in Knoxville, Tennessee, United States on 2020-01-12

Maindeck:

Artifact Creatures
3 Hangarback Walker
4 Stonecoil Serpent
4 Walking Ballista (Banned in Pioneer)

Creatures
3 Elvish Mystic
3 Llanowar Elves
4 Pelt Collector
3 Voracious Hydra
4 Winding Constrictor

Enchantments
4 Hardened Scales

Legendary Creatures
1 Rishkar, Peema Renegade

Legendary Planeswalkers
3 Nissa, Voice of Zendikar
2 Vivien, Arkbow Ranger

Basic Lands
6 Forest

Lands
4 Blooming Marsh
4 Llanowar Wastes
4 Overgrown Tomb
4 Woodland Cemetery

Sideboard:
1 Mistcutter Hydra
2 Scavenging Ooze
2 Abrupt Decay
2 Fatal Push
1 Golgari Charm
2 Kalitas, Traitor of Ghet
1 Liliana, the Last Hope
4 Thoughtseize