Sliver Overlord If you want to take one of Magics fiercest antagonists to the LGS, Sliver Overlord is an excellent option
A card that doesn't quite fit the "Pank" title, but was used in many decks for its ability to be an extender going first and a board breaker going second is Tenyi Spirit - Vishuda
Before you could fight Mewtwo, before you could catch any legendary, you had to get past Lance's Dragonite
Things like Yorion, Sky Nomad and Airbender Ascension make for some cool interactions
Id slip it into a deck with some ways to recoup your life, and potentially ways to reset it by bouncing it, such as Master Transmuter, or blinking it, such as Teleportation Circle
Talion, the Kindly Lord Talion, the Kindly Lord accrues immense card advantage and even a little pressure, presuming you get the number right