You can still attack them if they are your friend, or member of clan
Clan battles will move next week :(
Here is what Vayerman said in his words:
Hey Wizards,
You might already see new buttons sometimes appearing in the arena?
They appear if you are going to attack wizards who are your friends or members of your clan.
It may help you not to attack them, right? However, you may still do it, if you fell they deserved it. LOL :)
Vayerman | 7Wiz Master
P.S.
Clan wars moved to next week. It will be fun :)
_Piper_Paint_