Forgetful Fish Ben Guilfoyle explains how to play Forgetful Fish, a shared-deck, mono-blue mini-format from 1997 where players draw from one 80-card deck and race with ten Dandns
While this will mostly be relevant in casual play, it's worth pointing out that if you have a Naban, Dean of Iteration on the battlefield, every Wizard that enters the battlefield will trigger Warstorm Surge, Fathom Mage, Angelic Chorus, and Purphoros, God of the Forge (among others) an additional time, which opens up an entirely different layer of deck-building potential that was missing with Panharmonicon, which only triggered abilities on artifacts and creatures
" Alongside landfall cards or cards like The Gitrog Monster, "Sin, Spira's Punishment" will allow you to create a pretty deep mana bank
Chromatic Star, from Time Spiral Demolish, from Odyssey Flamewave Invoker, from Legions Fog Elemental, from Weatherlight Rule of Law, from Mirrodin Cho-Manno's Resolve (White) Evincar's Tyranny (Black) Arcanis's Guile (Blue) Molimo's Might (Green) Kamahl's Temper (Red)
Wall of Denial If your plan is to swing with Defenders, Wall of Denial is one of the scariest: an 8-toughness, flying Defender that can't be targeted