Board Thread:General Discussion/@comment-27667254-20160301035937

You can combine legendaries with mirror, then the legendary will have higher level (most legendaries top player have is L1 to L2, and I think the level count is same as mirrored epic)

And the elixir cost is quite low :3 I have seen someone use that way to make his/her princess L4

But the case is I think no one on this forum have legendary yet. 