Colors

Alex was the first to be called to the platform, with another person who was to be his opponent.

Once he arrived, he saw that there were 5 small formations on the podium, each of which he could press to throw out a different elemental attack.

"Start!"

As soon as the voice said that, Alex used the Metal attack. 

A projectile of no color flew out from his podium, shooting toward the other side. He looked to the other side and saw another projectile flying towards him, that too of no color at all.

When they collided, A flash of blue shined suddenly, and the resulting projectile hit Alex's podium.

'Shit!' Alex thought. He had realized that a water attack was flying towards him and had tried to send out a fire attack of his own to stop it, but it looked like there was an internal cooldown to the podium so that one couldn't continuously send out attacks.

'That was unlucky,' he thought as he shook his head.