Spider Guard is a popular position in Brazilian Jiu-Jitsu that allows a practitioner to control their opponent using their legs. In this guard, the person on the bottom uses their feet to hook the opponent's arms or hips while maintaining a strong grip on their sleeves or collar. This position provides various options for sweeps and submissions. The key to effective Spider Guard is maintaining distance and using the legs to create leverage. By keeping the opponent off-balance, the practitioner can set up attacks or transitions to other positions. Proper technique and timing are essential for success in this guard.