Talk:Halloween 2018 Event (US)/@comment-36924796-20181028115630/@comment-36379627-20181028140210

cmiiw but I believe they increase the number of fodder enemies you get. e.g. Forest expert level have 6 beasts as standard. If you bring 2 copies of Elly's Adventure, you get 50% more, which is 3 additional beasts. More fodder enemies means more bag drops.