3-level Illusion
When you cast this spell, you magically replicate a hall of mirrors for yourself in thin air. For the duration an illusory double of you spawns every 5 feet that you move, staying in that space but still appearing as if it were you; for example, if you speak, they all seem to speak. When you end your turn under this spell, you can immediately choose one double to swap places with. A creature with truesight sees the illusions and you for the reality, and any creature can make an Intelligence (Investigation) check as an action against your spell save DC to determine which is the real you, if any, among those it can see. On a success, it knows which is real until you make more doubles. A double dissipates upon being attacked or or being forced to save or contest an ability check, and all doubles dissipate when the spell ends.