Grixis Delver
A Legacy deck, by Brian Coval
8th place at a tournament on 2017-10-22

Maindeck:

Creatures
4 Deathrite Shaman (Banned in Legacy)
4 Delver of Secrets
2 Snapcaster Mage
1 Tombstalker
2 True-Name Nemesis
2 Young Pyromancer

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

Sorceries
2 Cabal Therapy
4 Gitaxian Probe (Banned in Legacy)
4 Ponder

Lands
4 Flooded Strand
4 Polluted Delta
1 Tropical Island
3 Underground Sea
3 Volcanic Island
4 Wasteland

Sideboard:
1 Null Rod
1 Grim Lavamancer
1 Ancient Grudge
2 Diabolic Edict
1 Dismember
1 Electrickery
2 Flusterstorm
1 Kolaghan's Command
2 Pyroblast
3 Surgical Extraction