Lurrus Jeskai Delver
A Legacy deck, by Louisbach
1st place at a tournament in Magic Online on 2020-04-30

Maindeck:
1 Island

Artifacts
3 Lotus Petal
4 Mishra's Bauble

Creatures
4 Delver of Secrets
3 Dreadhorde Arcanist (Banned in Legacy)
3 Young Pyromancer

Instants
4 Brainstorm
4 Daze
4 Force of Will
4 Lightning Bolt
2 Stifle
1 Swords to Plowshares

Sorceries
4 Ponder
1 Preordain

Lands
4 Flooded Strand
1 Plateau
4 Scalding Tarn
2 Tundra
2 Volcanic Island
4 Wasteland

Legendary Lands
1 Karakas

Sideboard:
2 Engineered Explosives
2 Null Rod
2 Winter Orb
1 Grim Lavamancer
1 Force of Negation
3 Pyroblast
1 Surgical Extraction
2 Swords to Plowshares
1 Lurrus of the Dream-Den (Banned in Legacy)