The Kyogre EX (104 / 108) card can be found in the Dark Explorers set.
Recently sold 6 times and based on those sales is worth around £44.25.
Currently, there are 2 open listings for this card on ebay.
This card sells in the range of £17.16 to £71.34, making it highly volatile.
This Rare Ultra card was illustrated by 5ban Graphics.
The fact that it is a EX card makes it one of the more valuable cards.