Elwin's Fantastical Horse

A Large, quasi-real, flying rocking horse appears on the ground in an unoccupied space of your choice within range. 

For the duration, you or a creature you choose can ride the steed. The steed uses the Flying Rocking Horse stat block. When the spell ends, the steed gradually fades, giving the rider 1 minute to dismount. The spell ends early if the steed takes any damage.