I had someone ask me for this, so here we go. Nice little tool that helps with your builds every 18 hours. I'll keep it updated as more properties come out. As you can see, there are plenty of extra skills to be had every time you build. Remember that since the fight formula leans more towards personal skills than mafia attack and defense that most of the time, it is better to add +3 to +6 attack and defense rather than build the strongest item. Happy hunting!