Ad Nauseam
A Modern deck, by Danny Spencer
1st place at a tournament in Columbus, Ohio, United States on 2017-01-22

Maindeck:

Artifacts
4 Lotus Bloom
4 Pentad Prism

Creatures
1 Laboratory Maniac
4 Simian Spirit Guide (Banned in Modern)

Enchantments
4 Phyrexian Unlife

Instants
4 Ad Nauseam
4 Angel's Grace
1 Lightning Storm
3 Pact of Negation
3 Spoils of the Vault

Sorceries
4 Serum Visions
4 Sleight of Hand

Basic Lands
1 Island
1 Plains

Lands
3 City of Brass
2 Darkslick Shores
1 Dreadship Reef
4 Gemstone Mine (Not currently legal in Modern)
3 Seachrome Coast
4 Temple of Deceit
1 Temple of Enlightenment

Sideboard:
4 Leyline of Sanctity
1 Echoing Truth
2 Holy Day
1 Pact of Negation
1 Slaughter Pact
1 Wear
2 Crovax, Ascendant Hero
2 Thoughtseize
1 Boseiju, Who Shelters All