Congratulations.

Ah... I'm not even a member of a clan :), but... I know that there are good people in this clan, and I'd be happy to congratulate them on the clan's birthday.
By the way, on a birthday, it's customary to first congratulate the parents, and in this case, that's the clan members :)
I wish the clan and its members continue to delight us with victories, which are "countless"!

P.S.: I'm speaking officially on behalf of the clan "Guardians of the Necronomicon," which, of course, doesn't exclude congratulations from the other clan members :)