Incantation

 a limited-time currency that was released on October 3, 2018 for the Treehouse of Horror XXIX Event. It the only currency used in the Holy Forge to craft prizes for the event. was also used for upgrading the Flanders Family Tome.

How to Obtain
obtained:
 * By digging for Relics at the Old Ruins (only if the Relic is found).
 * By tapping Monster Minions that spawn in the player's town.
 * By tapping Monster Minions in friends' towns.
 * From personal prizes (Level 5 in all three Acts).

Gallery
US$