Your search for "Flowstone Shambler" revealed the following:
Flowstone Shambler (STH) from Stronghold, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jim Nelson Card Text:R: Flowstone Shambler gets +1/-1 until end of turn.
Flowstone Shambler (9ED) from Ninth Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jim Nelson Card Text:R: Flowstone Shambler gets +1/-1 until end of turn.
Flowstone Shambler (Foil) (9ED) from Ninth Edition, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Jim Nelson Card Text:R: Flowstone Shambler gets +1/-1 until end of turn.