Raids are side missions within the clan app separate from clan wars. I can pay for entry on some of these and we get CXP and gear. If interested what days/times work for you all? Raids have a two hour window within which they run and has a five minute countdown timer once I agree to doing the raid.
Example of a raid:
win x matches of HP
win x matches of KC
win x matches of HC TDM
Also worth noting is we need a minimum of three members signed up to be able to start one and the more members signed up the more matches it appears you must win.