The use of cupping is similar to some old-world medical technology that has been lost for a long time. The mouth of the cupping is adsorbed on the skin of the patient, and the swimming needle in the cupping is pierced into the patient's ecologically eroded meritocracy, which can remove the accumulated mana material when the cupping is carried out. It is speculated that the ancient characters carved on the tank body can make the spiny tank have a certain influence on the space in which it is located when it is used.