Mono-White Devotion
A Pioneer deck, by Steven Yean
8th place at a tournament in Wallingford, Connecticut, United States on 2020-02-29
As reported at http://www.starcitygames.com

Maindeck:

Artifact Creatures
4 Arcanist's Owl
4 Walking Ballista (Banned in Pioneer)

Creatures
3 Knight of the White Orchid
4 Thraben Inspector

Enchantments
2 Baffling End
2 Rest in Peace
2 Stasis Snare

Legendary Creatures
2 Anafenza, Kin-Tree Spirit
2 Tomik, Distinguished Advokist

Legendary Enchantment Creatures
2 Daxos, Blessed by the Sun
4 Heliod, Sun-Crowned

Legendary Planeswalkers
1 Gideon Blackblade
3 Gideon of the Trials

Basic Lands
18 Plains

Lands
4 Idyllic Grange

Legendary Lands
3 Nykthos, Shrine to Nyx

Sideboard:
3 Damping Sphere
1 Archon of Sun's Grace
2 Baffling End
2 Elspeth Conquers Death
1 Rest in Peace
1 Stasis Snare
1 Gideon Blackblade
2 Gideon, Ally of Zendikar
2 Glare of Heresy