U/R Prowess
Featured by Emma Handy on 2017-04-06 (Legacy)

Maindeck:
2 Island
2 Mountain

Creatures
1 Bedlam Reveler
4 Delver of Secrets
4 Monastery Swiftspear
3 Stormchaser Mage

Instants
4 Brainstorm
4 Daze
1 Fireblast
3 Force of Will
4 Lightning Bolt
2 Price of Progress
1 Thunderous Wrath

Legendary Creatures
1 Vendilion Clique

Sorceries
4 Chain Lightning
4 Gitaxian Probe (Banned in Legacy)
4 Ponder

Lands
3 Misty Rainforest
1 Polluted Delta
4 Scalding Tarn
3 Volcanic Island
1 Wooded Foothills

Sideboard:
1 Grim Lavamancer
1 Izzet Staticaster
2 Sulfuric Vortex
1 Flusterstorm
1 Force of Will
1 Price of Progress
1 Pyroblast
2 Smash to Smithereens
1 Spell Pierce
1 Submerge
3 Surgical Extraction