After thinking about it for two days, Rishi was able to create a system. He had to train the shadow priests to help with the evolution.
He decided to create a pool and place the formations and magic array there before placing the evolution crystal.
Without Evolution Crystal, they would need way more resources and time.
He also created one more evolution path for Wyverns; it was the Venom Wyvern Path. It was not as strong as the Inferno Wyvern Path, but it had its own advantages.
He also divided all Wyvern into different groups according to their affinity and personalities.
Affinity was poison and fire.
Personality required to evolve into an Inferno Wyvern: hot-tempered, aggressive, and impulsive
Personality required to evolve into a Venom Wyvern: cunning, stealthy, and enigmatic. After this, he wrote down the material required and taught the Shadow Priests how to use the tools.