The Dratini (53 / 109) card can be found in the Team Rocket Returns set.
Recently sold 3 times and based on those sales is worth around £16.06.
Currently, there are 3 open listings for this card on ebay.
This card sells in the range of £14.04 to £18.08, making it very stable.
This Common card was illustrated by Atsuko Nishida.