Hardened Scales
A Pioneer deck, by AJ Grenke
6th place at a tournament in Columbus, Ohio, United States on 2020-01-05

Maindeck:
4 Forest

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

Creatures
4 Lotleth Troll
4 Slitherhead
2 Tireless Tracker
4 Winding Constrictor

Enchantments
4 Hardened Scales

Instants
2 Abrupt Decay
1 Assassin's Trophy

Legendary Planeswalkers
3 Nissa, Voice of Zendikar
3 Vraska, Golgari Queen

Basic Lands
3 Swamp

Lands
4 Blooming Marsh
1 Castle Locthwain
1 Karn's Bastion
3 Llanowar Wastes
4 Overgrown Tomb
1 Westvale Abbey

Sideboard:
1 Biogenic Ooze
3 Scavenging Ooze
1 Assassin's Trophy
2 Fatal Push
1 Golgari Charm
2 Noxious Grasp
1 Liliana, the Last Hope
1 The Elderspell
3 Thoughtseize