The Charizard EX (100 / 106) card can be found in the Flashfire set.
Recently sold 6 times and based on those sales is worth around £35.00.
Currently, there are 25 open listings for this card on ebay.
This card sells in the range of £6.48 to £63.52, making it highly volatile.
This Rare Ultra card was illustrated by Ryo Ueda.
The fact that it is a EX card makes it one of the more valuable cards.