Return + Close Combat is the least of your worries when concerning Zangoose. Most of the time its nothing but a filler/wall buster and the real offensive move is Quick Attack + Swords Dance not taking into account attack modifying items. If it weren't for that I should like to think a simple Mach Punch would do away with it. But with 90 base speed and a priority modifier its hard to get a jump on it. There isn't really a Ghost either in UU who is either faster or won't get mauled by a lv2 Shadow Claw.