Always Be Prepared Trophy

Training mode consists of 10 challenges for 12 characters each. You only need to clear all 10 challenges for 10 characters. The characters you choose don't matter. These challenges are just basic fights against the CPU but with extra optional objectives. However, clearing a challenge entails only winning the fight. You don't have to complete any of the optional objectives. A fast way to go through this is to spam your  attack after a combo, then finish off your opponent with your Ultimate Art. Doing this method should only take you between 20-40 seconds per fight.Once you've completed the 10th challenge for your 10th character, this trophy will unlock.