Ad Nauseam
A Modern deck, by GideonRavensword
11th place at a tournament in Magic Online on 2020-07-06

Maindeck:

Artifacts
4 Lotus Bloom
4 Pentad Prism

Creatures
4 Simian Spirit Guide (Banned in Modern)
3 Thassa's Oracle

Enchantments
4 Phyrexian Unlife

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

Sorceries
4 Serum Visions
2 Sleight of Hand

Basic Snow Lands
1 Snow-Covered Island
2 Snow-Covered Plains

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

Sideboard:
1 Sphinx of the Final Word
4 Leyline of Sanctity
1 Echoing Truth
1 Pact of Negation
2 Slaughter Pact
3 Veil of Summer
1 Bontu's Last Reckoning
2 Thoughtseize