This game is my favourite mobile game. You can get good cards and rewards without spending money. There are always events thats why it never gets boring. Compared to Rage of Bahamut I prefer this, because you have dungeons where you walk, plus the interface is much better. RoB menu is terrible... so if you like TCGs, in a RPG mix with dungeons, PVP, and team events, play Blood brothers!!!
And enter my code in the beginning 7YmfuS
Regards
Yyomaslayer