The Cryon Ray is a freeze weapon from Quartex.
Rock Lords mini-comics
Magmar discovered the Cryon Ray during his studies of Stonehead and was eager to put it into action. When Boulder led the Good Rock Lords against him Magmar had his troops set up an ambush and used the Ray to freeze them in their rock forms before carting them back to a cage outside Stonehead. However, Nuggit had been ahead of his friends and missed the fight; he followed them back to Stonehead and accidentally activated a long-forgotten secret panel in his chest. This not only freed Boulder and the others from the effect of the ray but disabled the weapon itself, allowing the Good Rock Lords to overcome Magmar's troops and get away. Powerful Living Rocks Face a Deadly New Peril
- Whether as a deliberate call-back or sourcing of an extant design, the Cryon Ray strongly resembles the scepters seen in GoBots: Battle of the Rock Lords.