Wisdom

Resource management
This game is all about resource management, not collecting heroes as the name would imply. You need to balance farming of characters and gear.

For character farming, it is recommended that you have no more than 4 LS/DS farms and 2 Fleet farms + 1 Cantina farm at any one time. You should NEVER refresh unless it will definitely help you in the long run. One case where it might be beneficial is farming Houndstooth as getting more fleet currency/crystals earlier will help compensate for the crystal use.

Psychology
There is a lot of random rolling in this app. To avoid frustration, continue covering up the screen just before you roll and then going 'back' before you see the result.