Divinity.
It was a great power!
Deities had three essential parts. Their divinity, Shard of Divinity, and their title.
Divinity could be understood as [divine blood]. The body of a deity was a form of energy, unlike the flesh and blood that mortals are constrained to. That's why deities could not be harmed. They had immunity to any fatal attack. Even if they fell to the mortal realm and became saints, they were still semi-energetic creatures. Deities would not die immediately, even when they were pierced in the heart. In fact, they could survive without their heart. Therefore, many divine creatures were immune to backstabbing. (They were immune to critical attacks. But, there were still areas of weakness.)
Divinity was an extremely powerful bloodline.
It could be given by the deities to the believers or could be left in the body of their descendants. The grades of divinity were also classified the same as the Shard of Divinity.
