From the announcement:
Ghosts, demons, skeletons, and zombies rise up in WizKids HeroClix: Undead! Pit your favorite heroes against a horde of werewolves or team up with Dr. Jekyll! Scare the Clix out of your opponents!
In this 24 count gravity feed, there are 19 different figures to collect. The rarity breakdown is as follows:
9 Common figures
8 Rare figures
2 Chase figures
With an impulse-friendly price point, single-figure foil packs are a great purchase for new and established players alike!