So I use raids basically for farming ham and iron. I’ll put up a defense team that hovers around 1400 cups because I’ve found that there’s a lot of people in this range that have 20k+ resources sitting around. I only raid people with high resources which tend to be players that haven’t logged on for days.
My team that I use for raiding is about 3700, so I easily win the revenge/raid. This also helps to easily fill up the Hero chests.
Every now and then I’ll switch to a high power team to see where I “fit” in the ranks, but since I realized cups are relatively useless, I now use the whole system as a resource to advance in more useful aspects of the game.