Echo Knight

Summoner size humanoid, any alignment
AC: 14 + Prof. | HP: 1 | Speed: 30 ft.
Stats: Same as summoner
Condition immunities: All
No action: Mentally command the echo to move.
Attack action: Can attack from your place or the
echos place.
Bonus action: Teleport, swapping places with
your echo at a cost of 15 ft. of your movement.
Reaction: Echo can do an Oportunity Attack.