The Entei ex (91 / 95) card can be found in the Team Magma Vs Team Aqua set.
Recently sold 5 times and based on those sales is worth around £42.00.
Currently, there are 3 open listings for this card on ebay.
This card sells in the range of £19.45 to £64.55, 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.