He saw Yamato's hardened glare meet his own dead on, knew that they were both in this to the end, to fight to survive or die together and-

Kakashi's attack veered at the last second, the surge in his hand fizzling to a pathetic and dim quiet.. but not before he'd made contact, the jutsu rippling across Yamato's skin to leave trails of scorch marks behind.

He didn't even notice the pain in his side for a moment, distracted by the ache of chakra exhaustion and the intense and concentrated pain in his temples. His head was so /busy/ that it was hard to focus on anything but the heavy cloud of regret and guilt seeping in to quench his anger, making him lethargic and tired and souring his black mood to something apathetic and weak..