Grixis Delver
A Modern deck, by Ryan Overturf
4th place at a tournament in Indianapolis, Indiana on 2017-02-26

Maindeck:

Creatures
4 Death's Shadow
4 Delver of Secrets
1 Gurmag Angler
4 Snapcaster Mage

Instants
2 Fatal Push
1 Kolaghan's Command
4 Lightning Bolt
2 Mana Leak
4 Spell Snare
1 Terminate
4 Thought Scour

Legendary Creatures
2 Tasigur, the Golden Fang

Sorceries
4 Serum Visions
4 Thoughtseize

Basic Lands
1 Island
1 Swamp

Lands
1 Blood Crypt
4 Bloodstained Mire
4 Polluted Delta
4 Scalding Tarn
2 Steam Vents
2 Watery Grave

Sideboard:
3 Countersquall
1 Dispel
2 Magma Spray
2 Mana Leak
2 Spell Pierce
3 Terminate
1 Liliana, the Last Hope
1 Collective Brutality