[deck=Urza Prison]
Creature
4 Urza, Lord High Artificer
4 Goblin Engineer

Land
1 Steam Vents
1 Hallowed Fountain
4 Scalding Tarn
4 Flooded Strand
1 Inventors' Fair
2 Spirebluff Canal
1 Snow-Covered Plains
5 Snow-Covered Island
1 Snow-Covered Mountain
1 Prismatic Vista

Artifact
1 Ensnaring Bridge
1 Grinding Station
2 Pithing Needle
4 Mishra's Bauble
2 Chromatic Star
3 Sword of the Meek
4 Thopter Foundry
3 Mox Opal
1 Nihil Spellbomb
2 Ichor Wellspring
1 Grafdigger's Cage
4 Arcum's Astrolabe

Instant
3 Whir of Invention

Sideboard
4 Leyline of the Void
1 Ghirapur Aether Grid
2 Path to Exile
3 Lightning Bolt
3 Ceremonious Rejection
2 Teferi, Time Raveler
[/deck]

Urza Prison

4 Urza, Lord High Artificer
4 Goblin Engineer
1 Steam Vents
1 Hallowed Fountain
4 Scalding Tarn
4 Flooded Strand
1 Inventors' Fair
2 Spirebluff Canal
1 Snow-Covered Plains
5 Snow-Covered Island
1 Snow-Covered Mountain
1 Prismatic Vista
1 Ensnaring Bridge
1 Grinding Station
2 Pithing Needle
4 Mishra's Bauble
2 Chromatic Star
3 Sword of the Meek
4 Thopter Foundry
3 Mox Opal
1 Nihil Spellbomb
2 Ichor Wellspring
1 Grafdigger's Cage
4 Arcum's Astrolabe
3 Whir of Invention


Sideboard
4 Leyline of the Void
1 Ghirapur Aether Grid
2 Path to Exile
3 Lightning Bolt
3 Ceremonious Rejection
2 Teferi, Time Raveler