Yorion Azorius Devotion
A Pioneer deck, by SourceOdin
2nd place at a tournament in Magic Online on 2020-04-22

Maindeck:

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

Creatures
4 Charming Prince
4 Knight of the White Orchid
4 Reflector Mage
4 Thraben Inspector

Enchantments
4 Baffling End
3 Elspeth Conquers Death
2 Gideon's Intervention
2 Stasis Snare

Legendary Creatures
2 Anafenza, Kin-Tree Spirit

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

Legendary Planeswalkers
3 Teferi, Time Raveler (Banned in Pioneer)

Basic Lands
14 Plains

Lands
4 Glacial Fortress
4 Hallowed Fountain
4 Irrigated Farmland
4 Temple of Enlightenment

Legendary Lands
4 Nykthos, Shrine to Nyx

Sideboard:
4 Damping Sphere
2 Glass Casket
4 Disdainful Stroke
2 Skysovereign, Consul Flagship
1 Lavinia of the Tenth
1 Yorion, Sky Nomad
1 Teferi, Time Raveler (Banned in Pioneer)