(With water, pretty much. Tidus can sence auras though water considering everyone ether gone though water and now there the rain. Tidus is pretty much close to full power)
Tidus felt the rain water hit his fur and he stood there breathing in the scent of rain and his eyes were glowing brightly as he followed Menuo and stood guard outside the cave in the rain feeling everything swiling around him. He build up a water dam around the entrance that would prevent anyone but the other wolves from entering. There were small hole in the dam so that everyone could breath easily.