Q: What happens if one of the Rules you turn up with Pandora’s Box is Inflation?

A: Then Pandora’s Box now goes to 4. Since everything happens immediately in Fluxx, Inflation is applied to the Action that caused it to be played. Even if it was the third Rule you played, and you thought it would be the last, you’d suddenly have to go to a fourth New Rule, so you’d continue.

Adventure Time Fluxx includes the Inflation analogue, Mathematical! Inflation is also available as a promo card to add to any Fluxx deck.

Math Fluxx includes a card called Increment All, which is similar to Inflation except it only affects Actions and New Rules.