Ra Castaldo is a certified, Reverend, spiritual advisor, Master Reiki Healer and Hereditary Seer. 
He has various Crystal Skulls that are "Master" Skulls. These are crystal skulls he  uses as the head of  Crystal Skull Mandala Light grids, that are used for accessing higher knowledge about ones Cosmic life path. 
"Omegas Li" is one of them 
Elongated Labradorite " Alien" Crystal Skull
Great for knowledge of ones higher soul journey as it relates to your journey through the cosmos .
Deep Dive Crystal Skull Master Reading :
You can ask questions  about  past , current, future events or situations, people etc. 
Past life regression
Soul mission
Dream healing
Light family activation code given to connect to mandala of Akasha light , Plasma Waters / Solar Wind Network
Disclaimer:
Do not take this as any medical, psychiatric or clinical advice. This is for entertainment purposes only.