The Shiftry ex (97 / 100) card can be found in the Crystal Guardians set.
Recently sold 3 times and based on those sales is worth around £24.57.
Currently, there are 8 open listings for this card on ebay.
This card sells in the range of £8.86 to £40.28, making it quite volatile.
This Rare Holo Ex card was illustrated by Ryo Ueda.
The fact that it is a EX card makes it one of the more valuable cards.