Quote Originally Posted by sanahtlig View Post
If I had a +100% eidolon, I'd probably use bricks to buff that. That's roughly +2% damage per 15k medals, and your friends can use it also. I also wouldn't be surprised if eidolons got their own final limit break someday.
If I read the wiki right, you can only buy weapon bricks from Tower events. The Eidolon bricks are from new Union punchbag "events."