Your search for "Prismwake Merrow 46" revealed the following:
Prismwake Merrow (SHM) from Shadowmoor, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Wayne England Card Text:FlashWhen Prismwake Merrow comes into play, target permanent becomes the color or colors of your choice until end of turn.
Prismwake Merrow (Foil) (SHM) from Shadowmoor, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Wayne England Card Text:FlashWhen Prismwake Merrow comes into play, target permanent becomes the color or colors of your choice until end of turn.