Your search for "sinister gnarlbark 12" revealed the following:
Sinister Gnarlbark - Extended Art (ECC) from Lorwyn Eclipsed Commander, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Olivier Bernard Card Text:At the beginning of your end step, draw a card and blight 1.
Sinister Gnarlbark (ECC) from Lorwyn Eclipsed Commander, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Olivier Bernard Card Text:At the beginning of your end step, draw a card and blight 1. (Put a -1/-1 counter on a creature...