The Dark Grimoire Tarot is perfect for Halloween divination.
The names of the suits were cleverly changed: Wands is now Imps, Cups is represented by Ghosts, Swords is now Bats, and Pentacles is now Pumpkins.
This deck can be found for less than on eBay, at Amazon.
Want just the deck and not the book?
While not a Tarot deck, this little Gypsy Witch Fortune Telling playing cards deck can be an inexpensive diversion at your Halloween party.