There was this suggestion: [Implemented - V35] Implement Defense Team Testing. 🛡
… which is now marked as implemented, although it is not. Alliance matches are OK, but the above mentioned suggestion was about attacking one’s OWN defense. I think that by far the most beneficial thing about friendly matches would be to see your own defense in action, being able to repeatedly attack against it and thus be able to optimize it.
So, just remove the limitation that one cannot attack oneself? (And ideally, that would not cost a ticket )