Mirror Entity and Sage of the Maze on the battlefield.
Sage of the Maze does not have summoning sickness.
Steps
Activate Sage of the Maze's first ability by tapping it, adding ({1} magic symbol) ({G} magic symbol) .
Cast Wirewood Symbiote by paying ({G} magic symbol) .
Activate Mirror Entity by paying ({1} magic symbol) , giving creatures you control all creature types and base power and toughness 1/1 until end of turn.
Activate Wirewood Symbiote by returning it from the battlefield to your hand, untapping Sage of the Maze.