It looks like the card's best placed when using the secondary MTG commander from the deck, Alela, Cunning Conqueror, since she makes faerie rogue tokens herself, which you can use to trigger prowl
Like most Pokmon cards, the value of Kyurem depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Legendary Treasures)
If you cant afford Deflecting Swat, this happily stands in alongside Bolt Bend
Then if you control nine or more Wraiths, Wraiths you control have base power and toughness 9/9 until end of turn
While not incredibly popular compared to other special card types that could be pulled in the Reverse Rare slot such as Character Cards, Amazing Rares, and Shiny Pokmon, I find Prism Stars to have a unique and classy look to them