Decided to throw together a little guide for obtaining this Trophy. This is the most efficient way to get your Gold Trophy. This requires the least amount of Energy and the least amount of Time. You can use this method on any map though as long as your party can handle it. What you're going to do is create a team of Paul's and Eldin's. Paul starts off with Steal but Eldin gets his Steal at 2* Level 7. These are free Friend Point units. You begin the combat phase by selecting Steal with your 5 units. Then click Auto once and then again to turn it off. Now each turn you will click repeat. Notice that once an enemy is successfully stolen from the units will automatically move to the next unit to steal from. The friend unit (in this instance) automatically kills the unit you are stealing from. This cuts down on time taking an additional turn to attack the enemy. Here is the video.