20 Island
17 Mountain
1 Nivix, Aerie of the Firemind
1 Act of Aggression
1 Aetherize
1 Blazing Salvo
1 Brainstorm
1 Brimstone Volley
1 Cackling Counterpart
1 Cancel
1 Chandra's Fury
1 Chandra's Outrage
1 Chemister's Trick
1 Chill of Foreboding
1 Crippling Chill
1 Cyclonic Rift
1 Devil's Play
1 Dispel
1 Dream Twist
1 Electrickery
1 Essence Backlash
1 Faithless Looting
1 Fire // Ice
1 Firemind's Foresight
1 Flame Javelin
1 Fleeting Distraction
1 Force Spike
1 Geistflame
1 Grasp of Phantoms
1 Increasing Confusion
1 Increasing Vengeance
1 Inspiration
1 Into the Maw of Hell
1 Izzet Charm
1 Jace's Ingenuity
1 Magma Spray
1 Mana Leak
1 Mystic Retrieval
1 Nivix Cyclops
1 Nivmagus Elemental
1 Outwit
1 Overwhelming Intellect
1 Prophetic Bolt
1 Rapid Hybridization
1 Recoup
1 Rewind
1 Rolling Temblor
1 Scatter Arc
1 Secrets of the Dead
1 Shattered Perception
1 Silent Departure
1 Skullcrack
1 Snapcaster Mage
1 Spell Rupture
1 Street Spasm
1 Syncopate
1 Think Twice
1 Thought Scour
1 Thoughtflare
1 Thunderbolt
1 Twisted Image
1 Urza's Rage
1 Vapor Snag
1 Volcanic Fallout
1 Volcanic Geyser
1 Volt Charge
Sideboard:
1 Niv-Mizzet, the Firemind