New Game feature: Attacking own Clan member's bases for practice and improvements

To help improve on your clanmates' normal base and clan war base, I think it would be a good idea that you can pick whatever troops you want (per your current TH level and unit levels) and attack their bases. This would add a new element for the game during wait times and overall clan chemistry.

This can also help you practice and improve on your attack/build style, make suggestions to your clanmates on where their base weaknesses are without using resources.

Format:
on Clan info page, click tab "Practice" (or something)
- Pick a clan member
- Pick either their normal base or clan war base.
- Decide what units you would like to use to attack and what units you want in your war castle
- Decide what units they have in their war castle
- Attack their base
- On clan chat, can give feedback and have separate saved replays for this mode

Conditions:
- All traps will not need to be replenished.
- No resources are stolen or used
- Heroes that die in this action will not have any cooldowns.
- Unlimited attempts to do this.

Im pretty sure its ruled out Mr Fresh Spawn