When a willing ally that you can see within range is in danger, you can give them wings to fly out of the danger. As a reaction, a pair of angelic wings sprout on their back, which pulls them in a straight line to you, where they land in an unoccupied space next to you. This can potentially cause the harmful effect to miss if the creature leaves the range, the wings then vanish. This effect doesn´t  trigger attacks of opportunity.