Atlan observed everything with sharp eyes. He saw how the Olympians used their agility to skillfully maneuver their target into a position where they could leverage their strengths.
But that wasn't the only thing he saw. He was able to familiarize himself with everyone's LifeSkills. He was especially curious about those Olympians because they had powers he never even thought possible. They used their mutations in tandem with their LifeSkills with such smooth coordination that Atlan was able to find new ideas on how he would use his multiple LifeSkills in the future.
He was so honed in on absorbing all of that information that when he finally got a hold of himself, there were only two of them left in the arena.
Realizing this, Atlan immediately went back to the entrance of the arena and took out one of the blinders in the chest. Without this, he wouldn't be able to control a Canzer and command it to drive the chariot.