I think it would make the game more fun to have more variety in PvE. Lot of the events are very similar and against the same few dark avengers.
Since i started playing I’ve tried the galactus event once, while most of the other have been pretty similar in setup.
Could perhaps have an event against atlanteans, where the board slowly fills with water and you have to get as much damage through before the background is completely filled. Certain matches could also halt the water, to give you more time.
Any thought or ideas?