Turbo Depths
A Legacy deck, by Dan Mabee
3rd place at a tournament in Santa Clara, California, United States on 2018-01-06

Maindeck:

Artifacts
4 Lotus Petal
3 Pithing Needle

Creatures
4 Elvish Spirit Guide
2 Sylvan Safekeeper
4 Vampire Hexmage

Enchantments
1 Sylvan Library

Instants
4 Crop Rotation

Sorceries
4 Duress
2 Into the North
4 Sylvan Scrying
4 Thoughtseize

Basic Snow Lands
1 Snow-Covered Forest
1 Snow-Covered Swamp

Lands
3 Bayou
1 Bojuka Bog
1 Ghost Quarter
1 Sejiri Steppe
4 Thespian's Stage
4 Verdant Catacombs
1 Windswept Heath

Legendary Lands
3 Urborg, Tomb of Yawgmoth

Legendary Snow Lands
4 Dark Depths

Sideboard:
1 Pithing Needle
2 Sphere of Resistance
1 Sylvan Safekeeper
1 Choke
1 Sylvan Library
3 Abrupt Decay
1 Krosan Grip
3 Surgical Extraction
1 Mishra's Factory
1 Karakas