Complex sentence: Members of the Iga School of ninja were trained in disguise, escape, concealment, explosives, medicines and poisons, they were trained in techniques of unarmed combat and in the use of various weapons such as shuriken and ninjatō swords.
Split into simpler sentences: Members of the Iga School of ninja were trained in disguise, escape, concealment, explosives, medicines and poisons. They were trained in techniques of unarmed combat and in the use of various weapons such as shuriken and ninjatō swords.