Reminder on level 8: Don't go down left side and come up from yarn on the first row of food and then go down the right platforms lol...got stuck and couldn't move...little to fat.
you will earn them as you level up with more exp. the more cards you get and you earn the titans off of the caves its takes a while but you will earn cards just give it time and dont quit battles either you can get exp and gold by staying and finishing battles winning or losing
a good strategy since leaders can come back is to send your leader ahead and let you army build up in the back and send your army to the front-lines when the computer makes it halfway and then if the computer fights you back use the hercules strength first and then either the lightning strike or the phoenix and when you send your first wave let your backup army build up some and send them as reinforcements
people you have to equip your units and have them fight with your leader its that simple go down to the bottom of the screen on the game and click equip