The Mallow & Lana (231 / 236) card can be found in the Cosmic Eclipse set.
Recently sold 6 times and based on those sales is worth around £29.24.
Currently, there are 9 open listings for this card on ebay.
This card sells in the range of £24.75 to £33.73, making it stable.
This Rare Ultra card was illustrated by kirisAki.