U/B Improvise
A Modern deck, by Jon Goss
9th place at a tournament in Roanoke, Virginia, United States on 2017-07-02

Maindeck:

Artifacts
3 Ensnaring Bridge
1 Grafdigger's Cage
4 Mishra's Bauble
4 Pentad Prism
1 Relic of Progenitus
3 Sword of the Meek
4 Thopter Foundry
1 Time Sieve
2 Welding Jar

Instants
4 Whir of Invention

Legendary Artifacts
3 Mox Opal (Banned in Modern)

Legendary Planeswalkers
3 Tezzeret, Agent of Bolas

Sorceries
3 Collective Brutality
4 Serum Visions

Basic Lands
3 Island
1 Swamp

Lands
1 Breeding Pool
4 Darkslick Shores
4 Flooded Strand
4 Polluted Delta
2 Watery Grave

Legendary Lands
1 Inventors' Fair

Sideboard:
3 Chalice of the Void
2 Pithing Needle
1 Witchbane Orb
1 Herald of Anguish
2 Abrupt Decay
1 Padeem, Consul of Innovation
1 Damnation
2 Maelstrom Pulse
2 Thoughtseize