When facing difficult opponents such as the blue armored officers, it is best to used the following technique if Fleece is available. Once you enter the battle, use Party mode then switch to Solo mode while playing as Fleece. It is recommended that Fleece's Skill trip be at a level 5 and Backstab at level 8 or higher. While fighting trip-able enemies, like the blue armored officers or advanced officers, use Trip then move behind the opponent and use Stab. This trick does not work for flying and heavy enemies like Golems and Mephits that are immune to Trip. If Fleece backstabs at 12 or higher, this move can do major damage.