It was a thing.) The self-mill angle does make cards like this better, and sort of begs the question, why not maindeck Ral, Izzet Viceroy

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Repeat this indefinitely for infinite casts of noncreature spells, infinite colorless mana (if taking the zero mana permanent route), infinite burn damage (if Vivi, Guttersnipe, or Coruscation Mage are on the battlefield), infinite creature tokens (if Third Path Iconoclast or Ovika, Enigma Goliath are on the battlefield) Harmonic Prodigy Harmonic Prodigy doubles all your triggers of Wizards and Shamans , which is the creature type of nearly every creature in the deck
Agadeem Occultist Agadeem Occultist is a creature that can reanimate your opponent's creatures from the graveyard
You need a lot of card draw and if you don't have your Exploration you will just end up with too much stuff you can't cast or lay
Instead, it just switches attacks to someone else