You create an image of a person, monster, object or location that you can see within range and implant it into your mind, tome or grimoire. You are always able to recall this exact image and gain immediate information about your image.
Person
You gain information about the characters name, age, gender, where you have met the character and their proficiency.
Monster
You recall two of its ability scores, saving throws, resistances or vulnerabilities. (You ask your DM about two seperate things and they will answer you)
Object
You are able to identify any non-magical item with your Eternal Image. If you create an image of a magical item or weapon, you yourself can identify it later through the Eternal Image.
Location
You recall the exact location of the place seen in your image, as well as its general surroundings and any special landmarks or buildings in its vicinity that you know of.
* - (A snippet of empty paper)