Ad Nauseam
A Modern deck, by Alex Mangone
4th place at a tournament in Duluth, Georgia, United States on 2017-02-04
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
3 Pact of Negation
3 Spoils of the Vault

Sorceries
4 Serum Visions
4 Sleight of Hand

Basic Lands
1 Island
1 Plains

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

Sideboard:
1 Grave Titan
4 Leyline of Sanctity
1 Echoing Truth
3 Ethereal Haze
1 Pact of Negation
1 Slaughter Pact
1 Dragonlord Dromoka
2 Lingering Souls
1 Supreme Verdict