In the Core Rule Book (page 333) it states that Djinn in ethereal form are only vulnerable to Mystical Powers and Icon Rituals. However it doesn't really clarify how that might operate with game mechanics. It does state at the beginning of the Spirits and Sarcofagoi section that all Djinn can take an Ethereal form, but not all the entries have a bullet point explaining it (eg. the specific Djinn entry does, but the Efrite entry does not). How do you all handle this in your games?
1) What exactly is an Icon Ritual?
2) Do you think Holy Items should be able to harm all ethereal versions of Djinni?
3) what would you count as a Holy Item AND how would the players get them?
4) Do you think players should be able to create holy items?
Any other experiences or insight would be appreciated! Thank you.