Valla - dont put Attack artifacts on Valla, like I did! Years ago, I got Valla and I only had mostly  4 star rare artifacts. But I did have a very few 5 star epic artifacts, which I gladly put on Valla. Now I come back and look at Valla and discover that the epic artifacts were attack! So I just removed them and replaced them with Defense artifacts! .... Much better now :)

Has anyone else made similar beginner mistakes.