The great part about this one is that it doesnt have a cost limit on the instant, only that it be an instant and be currently in your graveyard
It's a powerful piece in an artistocrats deck
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
While it has a solid fair game plan, it can struggle to beat Grixis Deaths Shadow and Izzet Murktide at their own game
While Kari Zev certainly came across as a scoundrel in her original Kaladesh appearance, she wasnt quite on the level of diabolical villainy that Baral represented
#10 Sterling Grove Last, but not least, we have Sterling Grove