Grixis Delver Reanimator
A Legacy deck, by Medvedev
3rd place at a tournament in Magic Online on 2020-06-05

Maindeck:

Creatures
4 Delver of Secrets
4 Dreadhorde Arcanist (Banned in Legacy)
1 Ox of Agonas

Instants
4 Brainstorm
4 Daze
4 Entomb
4 Force of Will
4 Lightning Bolt

Legendary Creatures
1 Griselbrand

Sorceries
4 Ponder
4 Reanimate
4 Thoughtseize

Lands
2 Bloodstained Mire
2 Flooded Strand
2 Misty Rainforest
1 Polluted Delta
1 Scalding Tarn
3 Underground Sea
3 Volcanic Island
4 Wasteland

Sideboard:
4 Faerie Macabre
3 True-Name Nemesis
2 Pyroblast
3 Red Elemental Blast
1 Surgical Extraction
2 Shattering Spree