I have been playing E&P for 1.5 years now and I enjoy it very much! However, there are down times from time to time and they can be boring. So here is what I personally do to make things more fun.
For farming at 8-7, instead of using my regular farming team, I would use a team of unleveled 3*; or 1 or 2 4* heroes at 3/60. Or a combination of unleveled 3* and fully leveled 2* (yes, I kept my fully leveled 2* from the last 2* tournament crisis )
3* purple team for the Dark Lord.
3* team for season 2 and 3 stages. This can be quite a challenge. I do believe seasons 2 and 3 are designed for at least 4* teams. So only using a 3* team really takes a lot of planning and strategizing. I often try different heroes just to test things out.
What do you do to make the game fun for you during down times?