Throwaway Timeline

"I've met six versions of my future son, none of which were the one my wife gave birth to." -Professor Saeloth, Inventor of Dunamancy. 

You create a false timeline that presents itself to a creature within range that you choose, lasting for a minute.

If a creature uses its action to thoroughly examine their surroundings, the creature can determine that it is an illusion with a successful Intelligence (Investigation) check against your spell save DC. If a creature discerns the illusion for what it is, the illusion becomes faint to the creature. If this spell is used during combat, or if the alternate timeline is too unrealistic, the creature has advantage on the save.