Mono-White Aggro
A Pioneer deck, by Stephen Dykman
7th place at a tournament in Knoxville, Tennessee, United States on 2020-01-12

Maindeck:

Creatures
4 Benalish Marshal
4 Boros Elite
4 Dauntless Bodyguard
3 Giant Killer
2 Judge's Familiar
4 Law-Rune Enforcer
4 Thraben Inspector
4 Venerated Loxodon

Enchantments
4 Always Watching
1 Conclave Tribunal

Instants
1 Brave the Elements

Legendary Enchantments
4 Legion's Landing

Sorceries
1 Declaration in Stone

Basic Lands
15 Plains

Lands
2 Castle Ardenvale
1 Mutavault
2 Shefet Dunes

Sideboard:
3 Baffling End
2 Conclave Tribunal
1 Deafening Silence
1 Eidolon of Rhetoric
3 Brave the Elements
2 Unbreakable Formation
2 Gideon, Ally of Zendikar
1 Declaration in Stone