You can get many useful rewards by inviting people to play War of Legions.
First you must find the invite page. Easiest way is to click on the announcements banner. ------->
Then find the invite players banner. ---------------------------------------------------------------------->
There are five options for inviting, each with thier own rewards.
You can post an app review with your invite code, mine is 2403138403 as you can see here.
or you can email someone your invite code.
either way you only get your reward if they sign up and put in your invite code.
you get daily rewards from posts on Twitter and LINE.
Free gold and a free BP potion right now.
and finally inviting someone on facebook. but once again you only get a prize if they sign up and put in your invite code.