
Sigurd |

I am making an urn for a temple that is the vessel for the spirit of a holy man. The idea is that the holy man can be found near the alter by children, leaders etc..... and can still teach old lessons etc although he is now a shade.
Beyond simply being manifest as a spirit, the urn has a permanent flaming sphere within it that can be used as the spell and can cast stabilize at will within the confines of the temple.
The game import is that this is a high level holy adviser. I imagine that this is where the soul wants to be at least until it's deity calls it 'home'. It has lost any other spellcasting powers and is limited to the temple around the alter.
What sort of mechanical process would you think could create the item?
Given an appropriate masterwork urn, too big to carry on adventures, what game mechanics would you use to 'bind' the spirit?
Sigurd.