Swap a wing 2
Step 1 / 10
x': Whole cube: turn 90°, front face goes down
Left edge: the back wing belongs to the right edge, the front wing is flipped. Right edge: the back wing matches, the front wing belongs to the left edge.
The last two edges on the left and right of the top. The x' at the start brings them to the front.
Step 1 of 10: x'. Whole cube: turn 90°, front face goes down