The electrifying wall was a strange one. There was a reason why large amounts of electrical currents worked so well on Altereds, and it was because it interrupted the Altered process quite a bit.
The wall was too high for Ice to just build a platform and climb over; he had also used a lot of his powers already fighting against the Warden, and now out here, he was exhausted. So he was physically using his Altered strength with a small amount of his ice powers to climb the wall.
Yet, now the electric currents were going through his body; his strength was weakening, his body was getting the same power as before, and even his ice powers were getting harder to use.
Gary, it was affecting him but less so; he had a high endurance after all, so he was able to carry it, but he could hear the sound of grunting from behind. When looking behind him, Blackjack was doing fine, but he could see the heavy sweat on Ice’s face, struggling.