The mord here is different from that of Buddhism (in fact, Lu's mord in the original Water Margin is a weapon similar to a stick, but it has evolved into the kind you see in film and television dramas through the evolution of storytelling and drama), and this weapon is actually called crescent shovel.
Crescent shovel has different weapons at both ends and shovels at the other end. This shovel was actually a farm tool at first. When ancient monks practiced martial arts, they usually chose this shovel (knives, guns and other swords were officially banned on the one hand, and on the other hand, they did not conform to the characteristics of Buddhism's compassion). Besides, this shovel is sometimes very convenient. For example, if you encounter the bodies of some animals on the road, you can shovel and bury them, or you can shovel and pave the way.
Character source
Lu, formerly known as Lu Da, is a native of Kansai, Japan. In his early years, he joined the army under the old kind of "xianggong" of Yan' an government and made great contributions to the five-way ambassador of Kansai. Later, the small people ran away to defend the business in Weizhou, but there was no general to help protect them. The old seed transferred Lu Da to Weizhou and made him the prefect in the running department of the small seed.