The Kyogre & Groudon Legend (87 / 90) card can be found in the Hs Undaunted set.
Recently sold 14 times and based on those sales is worth around £35.80.
Currently, there are 12 open listings for this card on ebay.
This card sells in the range of £22.31 to £49.29, making it quite volatile.
This Legend card was illustrated by Shinji Higuchi + Sachiko Eba.