Dimir Death's Shadow
A Legacy deck, by Diem4x
2nd place at a tournament in Magic Online on 2020-08-09

Maindeck:

Creatures
2 Brazen Borrower
4 Death's Shadow
4 Delver of Secrets
2 Gurmag Angler
4 Street Wraith

Instants
4 Brainstorm
4 Daze
2 Fatal Push
1 Force of Negation
4 Force of Will
2 Snuff Out
1 Stubborn Denial

Sorceries
4 Ponder
4 Thoughtseize

Lands
2 Bloodstained Mire
2 Flooded Strand
2 Polluted Delta
1 Scalding Tarn
2 Underground Sea
2 Verdant Catacombs
4 Wasteland
3 Watery Grave

Sideboard:
1 Grafdigger's Cage
1 Ratchet Bomb
2 Winter Orb
2 Plague Engineer
2 Eliminate
2 Surgical Extraction
2 Narset, Parter of Veils
2 Hymn to Tourach
1 Karakas