Wording of Wings of the Night bottom should read “Before your next 4 Attack actions, perform a Move 2 as the first ability of the action” You must actually attack to have an attack action, but as long as you get in a position to do so, you gain the move, even if you are not in a position to do so before the move. You must be able to provably do the attack after moving - so can't open doors or reveal new/hidden information if doing so may prevent the attack. Items and any other abilities or effects that affect the total movement may be used to reach the attack hex.