Moonstrocities

Moonstrocities is one of the Challenges available in The Arena.

Description
"You dummies! You total nincompoops! Things go through portals in two directions! Didn't anyone ever teach you to close a door!? This is how the cacodemons start..."

Strategy
Nothing but Minibosses exclusive to The Moon here (hence the name of the challenge). Bring a resilient yet well-rounded party that can quickly handle them (there are likely only 3 types - Fire, Physical and Earth) - you'll need to kill 9 of them.