The Rowlet & Alolan Exeggutor GX (215 / 236) card can be found in the Unified Minds set.
Recently sold 7 times and based on those sales is worth around £31.99.
Currently, there are 6 open listings for this card on ebay.
This card sells in the range of £15.28 to £48.70, making it quite volatile.
This Rare Ultra card was illustrated by Naoyo Kimura.
The fact that it is a GX card makes it one of the more valuable cards.