Something that I've been curious about for a while. I know the algorithm puts you against players with similar trophy levels, but could you, in theory, attack another member of your clan?
It is impossible to attack fellow clan members. There are regulations within the game to prevent it.
You cannot attack fellow clan members even if you wanted to. Believe me, I've tried. :D
No, you can't. I think there are much more conditions to raid than just same trophy level
Yes you can but it is less than a 0.1% chance that you will... You'd both have to have about the same amount of trophies and be in the same league.
I thought it'd be cool if Supercell let you try out a army by attacking a Clan Member but not taking any loot or lose/win any trophies... It'd be like if you were training...
This is the simplest way to attack someone in the same clan as you...
If you were raided by a player and you invited them to join your clan and they accepted. You could still attack their base by using the Revenge option in your Defense Log.