Quote Originally Posted by Unregistered View Post
I've also read somewhere that there is a 10% HP + ATT bonus if you use Eidolon with same element (e.g. all fire). Is that true? i've just tested and didn't work..
There's no requirement for them ALL to be the same element. ANY same element Eidolon will give 10% bonus stats to all same element Soul/Hime in party. As nonsensei said, it shows up in the Edit screen.

Each Hime also has a preferred weapon type, and gets 20% extra stats from all weapons of that type. This is usually worthless for F2P players, but it's worth a giggle just how much more stats your Gun lovers (Dartagnan, Mammon) have when you have lots of Guns in your Grid.