The Deoxys (2 / 106) card can be found in the Emerald set.
Recently sold 2 times and based on those sales is worth around £10.28.
Currently, there are 5 open listings for this card on ebay.
This card sells in the range of £4.32 to £16.24, making it quite stable.
This Rare Holo card was illustrated by Hironobu Yoshida.