While you may need to have this card destroyed by battle in order to activate its effect, the cost is worth it since youll then be able to immediately Special Summon any one Light Monster with 1,500 or less attack points from your deck
This card cannot be destroyed by card effects
This pairs well with other lords like Kragma Warcaller and Ragemonger
Yes, it only hits things with mana value 2 or less, but Casket only hits creatures while this can be used to hit any nonland permanent
Nearly every creature in the deck is a Shaman or Wizard , allowing Harmonic Prodigy to support about every creature you have
It has a built-in way of losing life, so as long as you can reliably gain life each turn, it shouldnt be too hard to make some bats every now and again, all while drawing some extra cards