Clan Training Battles

Often clan member need training but simply attacking repeatedly in the hopes of wisdom an experience can be expensive (not to mention damaging to trophies)
What about an option for in-clan battles? These would not gain loot or affect trophies (and all troops are returned). They would simply allow training practice within the clan that can be discussed in chat.
Clan member could tailor and save specific layouts to help out clan members with a particular issue and it would enabled experimenting with troop ratios efficiently.
A number limit could be imposed (a maximum of 3 training battles per day?)