The 'Yue Ya Chan' literally translates into 'Crescent Moon Shovel' and can come in different variations. It is an ancient Chinese polearm that is conventionally favored by warrior monks.
The original pole which came with the Stikfas set proves too long, hence out of proportion with a minifig. Luckily, you can replace it with a Lego small rod although a little sand-paper work with the tip will be required.