First, it can dominate a game as a makeshift dragon while its protection from black leaves very few good options for removing it
That means if, say, Electrostatic Field were a Pirate, why, every time we cast an instant or sorcery we would get three treasures and the opportunity to cast a card off the top of all of our opponents libraries
Again, the flavor of this deck appeals to me big time
Of course, the Reanimator player casting this on turn one or two will frequently be bringing back Grave Titan or Archon of Cruelty, while the other player may not even have a creature in their graveyard yet to choose making this one of the very best early game reanimation spells ever
If that becomes a serious problem, I could see using this to help fight it
This makes running the card out normally a risky proposition