Orbs
While Sivan is thinking about what Sam could be doing next, Sam is also thinking about what Sivan would be throwing next.
He felt a slight stabbing pain in his leg and he is sure why it is coming. One of the metal shards was not blocked completely and it stabbed his leg.
He could feel the warm blood slowly dripping down.
Sam is already having trouble with the movement because of the massive handicap he had. Now even the one leg he had is damaged slightly. The situation is only getting worse.
Even while thinking that, Sam didn't stop making the orbs.
He just took advantage of the time that he got because of Sivan's slight confusion.
But it didn't last long. As he was creating one orb after another, Sivan came back to his senses, and instead of attacking Sam, he finally focused on the energy orbs.