Thread: How do I start a raid battle?

make sure you're in the first realm again, you've probably completed 2nd and 3rd as that's what's key for the 2nd panel missions, so click on the world map (next to "check battles" or "raid boss") and go back to the Rotten Relic
you should be able to start your own raids and get jewels from them in both standard and expert version.

So that was the problem, probably wouldn't have figured that out on my own. Thanks!