Jason didn't know the exact requirements for Solaris to evolve into a Tier-2 Origin flame, but what he was sure of was the fact that it were not only origin flames it had to devour.
In fact, Solaris had already devoured quite a few Origin flames, but that was not what had allowed it to develop the most.
Rather than the same type of flame, it had always been other flames that had helped Solaris the most.
Based on this observation, Jason believed that Solaris would require Origin flames and other types of unique flames to evolve.
This was quite a hassle as even low-ranked Origin flame crystals were hard to procure.
Yet, finding new types of flames was even more difficult as they were possibly even scarcer.
As such, Jason had decided to passively search for them while going out with Jennifer to roam through the shops.