User blog comment:Qwertyxp2000 the second/Suggestions for Odyssey Mode Week 2/@comment-45290014-20200712070310

I think that primary/military/magic only could work, but only at most one in each odyssey. If harder modes appear, the trophy rewards also should be higher.

I can see players having to think for towers that can get through Impoppable, whilst still having enough towers to deal with an island with primary/military/magic only.