Piracy is a card never reprinted outside of Portal Second Age and Starter 1999. It actually does something really cool. For only UU (2 blue mana) during that turn you may tap your opponents' lands to help pay for your spells.
As cool as Piracy's effect is, however, it's a card you rarely ever see played due to how strange its effect really is. It's hard to build a deck around a card like this due to the fact you don't know what lands your opponent may be playing. It's a fun little card in Commander, played at the correct time. If you're able to reuse it later in the game, it gets even better. Piracy is more of a cool curiosity at this point, and I would've loved to have pulled one of these had I been playing those starter sets.