U'landor, the exotic's Nostalgic Phantasmagoria

You recreate an ethereal scene of the past, of the exact location you stand (60 cubic feet), with phantasms that visually emulate objects, terrain and creatures, but no sounds or smells.

The scene lasts an hour and mirrors the exact time of day and date, retroactive to a limit which depends on the following spell level scale:

4th: Up to a Week ago.

5th: Up to a Month ago.

6th: Up to a Year ago.

7th: Up to a Decade ago.

8th: Up to a Century ago.

9th: Up to a Millennium ago.

The spell can be canceled by the wizard with a bonus action or dispelled, however, there are costs:

• If any other creature witnesses the spell, a paradoxical backfire causes the wizard  to take 2d10+5 psychic damage per witness, meaning that, for example, if three creatures witness a scene from any period, the wizard takes 6d10+15 damage.
• If the wizard dies by this spell, its soul is lost in the past and is now a part of the phantasm emulation in its exact time and place. In this case, there is a 35% chance that the scene  will trigger itself yearly at that time and place until someone dispells it or after one thousand apparitions. 

This was the last spell weaved by U'landor, the Exotic, before the fall of Am'Duer.