The Flygon ex (87 / 92) card can be found in the Legend Maker set.
Recently sold 4 times and based on those sales is worth around £25.33.
This card sells in the range of £0.01 to £61.86, 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.