15 Island
15 Mountain
1 An Offer You Can't Refuse
1 Arcane Bombardment
1 Counterspell
1 Doublecast
1 Expansion // Explosion
1 Incinerate
1 Increasing Vengeance
1 Insidious Will
1 Into the Roil
1 Izzet Charm
1 Lightning Bolt
1 Lightning Strike
1 Narset's Reversal
1 Play with Fire
1 Reinterpret
1 Reiterate
1 Repeated Reverberation
1 Reverberate
1 Shock
1 Sinister Sabotage
1 Slaying Fire
1 Teferi's Time Twist
1 Thousand-Year Storm
1 Twincast
1 Twinferno
1 Unexplained Disappearance
1 Unsubstantiate
1 Unsummon
1 Voyage's End
1 Wild Ricochet
Sideboard:
1 Lutri, the Spellchaser
1 Ral, Storm Conduit
1 Teach by Example