[quote=@souleaterfan320]
<Snipped quote by whizzball1>

It's an ice beam. You can't deflect a beam made of one specific element. That would only be possible if the enemy had similar powers. It would simply freeze the mirrors. 
[/quote]

It's not an ice beam. That's not his power. It's a light beam. His light just happens to restrict the movement of whatever being it touches. It's not freezing them in ice, it's just freezing them.