Unexpected Windfall Combos
Mizzix of the Izmagnus + Unexpected Windfall + Reiterate
Nivix Guildmage + Unexpected Windfall + Agatha of the Vile Cauldron
Nivix Guildmage + Unexpected Windfall + Biomancer's Familiar
Nivix Guildmage + Unexpected Windfall + Storm-Kiln Artist
Combo result
Infinite card draw. Infinite draw triggers. Near-infinite Treasure tokens. Near-infinite colored mana. Near-infinitely powerful Storm-Kiln Artist. Near-infinite magecraft triggers.
Prerequisites
Unexpected Windfall in hand. All permanents on the battlefield. You have at least one additional card in hand. {R}{R} available.