The Ninetales ex (96 / 101) card can be found in the Hidden Legends set.
Recently sold 5 times and based on those sales is worth around £73.63.
Currently, there are 2 open listings for this card on ebay.
This card sells in the range of £46.49 to £100.77, making it highly 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.