human
Subaru:  The darkness magic he activated did not even cover the whole of the beast. Subaru had no talent for magic. This was all he could do with the final spell cast under his own power in his lifetime. Thanks to that, he made a beeline toward the beast’s wide-open right shoulder—
gpt
Subaru:  "—Come step onto my turf, Garfiel.” With all his strength, Subaru pounded the blue crystal he gripped in his hand into that right shoulder, which was as thick as a log. Light gushed forth.
human
Subaru:  “—Gnn!” Incredible particles of light surged forth. Subaru felt something akin to wind pressure as he fell backward. Landing on his butt, he backed away.
gpt
Garfiel:  "Wha—?" Freed from the incomprehension slammed into him, he was assaulted the next moment by chagrin.