Doppel

You create a tangible, shadowy illusory copy of yourself in an unoccupied space that you can see within range. This illusory copy uses your game statistics, except it is a Construct, its Hit Points is 5, and it can't take the Magic action.

The illusory copy is Friendly to you and creatures you designate. It obeys your commands (no action required) and acts after your turn in combat. The illusory copy disappears at the end of the spell's duration, or if it drops to 0 Hit Points, or if you cast this spell again, or if your Concentration breaks, or if you die. When it disappears, any memories or sensory information it gained are instantly absorbed by you. However, it drops anything it was wearing or carrying on the ground in its space.

Using a Higher-Level Spell Slot. The spell creates one more illusory copy for each spell slot level above 3.