Snakes, are the signature summons of Orochimaru, his assistant, Kabuto Yakushi, and his students: Sasuke Uchiha and Anko Mitarashi. They reside at the Ryūchi Cave, along with the Great Snake Sage.
The snakes can vary greatly in size, body mass and species, from small enough to hide in one's sleeves to larger than buildings, and thin enough to be used to tie someone's hands to strong enough to choke a colossal animal like the Island Turtle. Although common snakes cannot speak human language like toads, some of their summoners could communicate with them. They are able to detect live beings by their heat and smell in order to track and lead their summoners to their prey. They can also use their classic venom to poison things.
Orochimaru frequently summons snakes in battle, either having them attack for him or instructing them to carry out other tasks. While most snakes are very obedient and do as they are instructed, the largest snake, Manda, demanded a sacrifice of a hundred humans in exchange for helping Orochimaru.
Snakes have also mastered the use of natural energy to enter a Sage Mode of their own. The only known way to learn it is in the Ryūchi Cave with the White Snake Sage.
In our RP, SSM gives you a x5 tracking and several other benefits, which is pretty terrific.