Thats where they hang out lol. Makes it harder for someone to see you use them. A: They seek them out, so they would continue towards them till they find them. The beauty of it is you can force the enemy to defend from something else on another turn helping ensure the snakes get their targetYou summon the little snakes that go down from your pants (what were they doing there -.-) and into the ground. Then they travel to the target's position, and bite his legs, injecting venom.
Q: What happens when the target moves?
Use them wisely, I will link you in my cj thread. EnjoyCool stuff