Allsight

Allsight can either be made by ascending to godhood or by forging it in a quori planar forge (the God of dreams created this spell when they ascended).

Allsight
Divination: Epic Casting
Casting Time: 1 week
Range: Touch
Components: V, S, M (a crystal ball of true seeing, which the spell consumes, and the sight of a willing creature - the creature permanently blinded)
Duration: 500 years
Classes: Bard, Cleric, Druid, Sorcerer, Wizard
When you cast this spell, you place a willing creature you touch into a deep slumber for 1 week. During its slumber, the creature dreams of incredibly vivid scenes of a future event that will occur up to 500 years in the future.
This future event may include an apocalyptic catastrophe, the arrival of an ancient dragon or other such monster, the rise or fall of an empire, and so on. The event revealed is determined by the Game Master unless the spell is curated specifically.
When the creature awakes from its deep slumber, it retains all of the information gathered from the dream and cannot have these memories erased or taken from it by any means, unless it wishes to lose them.
Until the dreamed event occurs or is prevented, the creature that experienced the dream gains allsight and is aware of events, locations, people etc. that will have an impact on that future event, recalling that thing’s role in bringing about the future event. In addition, the creature is always at the top of the initiative order and cannot be surprised until the event it dreamed of is prevented or occurs. When the creature encounters such events, locations, people, etc. that are important to the future event; the Game Master will inform the creature. 
The creature has advantage on all actions, checks, and saving throws to take actions that will ensure this future is brought about or to stop this potential future from happening. The effects of the allsight spell remain until the future event has been prevented or has occurred.
The effects of this spell cannot be removed by spells, warps, or effects that end spells such as dispel magic, counterspell, antimagic field or similar magic or effects.
If the creature with allsight dies or drops to 0 hit points but is resurrected by any means, it retains the effects and memories granted by the allsight spell.