Esper Soulherder
A Legacy deck, by jtl005
1st place at a tournament in Magic Online on 2020-07-26

Maindeck:

Artifacts
4 Aether Vial

Artifact Creatures
4 Baleful Strix

Creatures
3 Charming Prince
1 Flickerwisp
4 Meddling Mage
1 Palace Jailer
1 Peacekeeper
1 Plague Engineer
4 Recruiter of the Guard
2 Soulherder

Instants
4 Brainstorm
4 Force of Will
3 Swords to Plowshares

Legendary Creatures
1 Barrin, Tolarian Archmage
1 Venser, Shaper Savant

Legendary Planeswalkers
1 Teferi, Time Raveler

Basic Snow Lands
1 Snow-Covered Island
1 Snow-Covered Plains
1 Snow-Covered Swamp

Lands
4 Flooded Strand
3 Marsh Flats
3 Polluted Delta
1 Scrubland
3 Tundra
1 Underground Sea
2 Wasteland

Legendary Lands
1 Karakas

Sideboard:
1 Ethersworn Canonist
3 Gilded Drake
1 Leonin Relic-Warder
2 Plague Engineer
1 Remorseful Cleric
1 Rest in Peace
3 Force of Negation
1 Swords to Plowshares
1 Lavinia, Azorius Renegade
1 Wasteland