Ad Nauseam
A Modern deck, by Ben Miller
1st place at a tournament in Littleton, Colorado, United States on 2016-05-15
As reported at www.starcitygames.com

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
2 Pact of Negation
1 Slaughter Pact
3 Spoils of the Vault

Sorceries
4 Serum Visions
3 Sleight of Hand

Basic Lands
2 Island
1 Plains

Lands
2 Darkslick Shores
4 Gemstone Mine (Not currently legal in Modern)
1 Reflecting Pool
3 Seachrome Coast
4 Temple of Deceit
3 Temple of Enlightenment

Legendary Lands
1 Boseiju, Who Shelters All

Sideboard:
4 Leyline of Sanctity
1 Echoing Truth
1 Ethereal Haze
1 Gigadrowse
2 Holy Day
1 Patrician's Scorn
1 Teferi, Mage of Zhalfir
1 Drown in Sorrow
2 Thoughtseize
1 Tolaria West