After hearing the teacher, Kakashi was unsure if he either was crazy or legitly speaking from experience. Kakashi tilts his head a bit in a bored expression contrary to his character.
"That sounds like suicide sensei."
Kakashi then sighs, knowing he has no other choice.
"Very well then."
Kakashi then attempts to summon again. He closes his eyes and tightens his fists as they are bent and angled, making it look like he was forming a W. As he gathers his chakra, some of it manifested around him. It engulfed him in a blue-like flame, a sign of true wisdom. The chakra intensifies as he must now gather an unprecedented amount even for him. He had really good chakra control so this was done quite efficiently. To the untrained eye, Kakashi seemed to have done quite flawlessly but inside his mind, he was struggling to keep control and from being overwhelmed himself.
(Thinking) "I can do this...I know I can. I haven't focused this much in a long time. It's hard to control this much especially for me. I hope I can keep it up or else I am going to become zombie dog food."
After concentrating far more than necessary, Kakashi bites his thumb deeply to draw out more blood than before though not to the point of bleeding out profusely. He then makes a string of handseals, claps his hands to smear blood on both palms, and slams them on the ground as he yells out more strongly and forcefully, keeping in mind the summon he wishes to call upon. His mind was more determined now and his will even stronger. Beads of sweat could be seen rolling down his face.
"Kuchiyose no Jutsu!"