Yorion Azorius Devotion
A Pioneer deck, by Th00mor
1st place at a tournament in Magic Online on 2020-04-22

Maindeck:
12 Plains

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
2 Baffling End
2 Elspeth Conquers Death
3 Stasis Snare
2 The Birth of Meletis

Legendary Enchantments
2 Legion's Landing

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

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

Lands
1 Castle Ardenvale
4 Glacial Fortress
4 Hallowed Fountain
4 Irrigated Farmland
1 Port Town
4 Temple of Enlightenment

Legendary Lands
4 Nykthos, Shrine to Nyx

Sideboard:
2 Gideon's Intervention
2 Rest in Peace
1 Erase
2 Isolate
3 Mystical Dispute
2 Tomik, Distinguished Advokist
1 Yorion, Sky Nomad
2 Gideon of the Trials