Your search for "Plated Slagwurm 12" revealed the following:
Plated Slagwurm (DDD) from Duel Decks: Garruk vs. Liliana, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Justin Sweet Card Text:Plated Slagwurm can't be the target of spells or abilities your opponents control.
Plated Slagwurm (MRD) from Mirrodin, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Justin Sweet Card Text:Plated Slagwurm can't be the target of spells or abilities your opponents control.
Plated Slagwurm (GVL) from Duel Decks Anthology: Garruk vs. Liliana, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Justin Sweet Card Text:Hexproof (This creature can't be the target of spells or abilities your opponents control.)
Swablu - 081/103 - Common - Reverse Holo from Mega Evolution: Delta Reign, available at 401 Games Canada. Rarity: Common Finish: Reverse Holo Artist: Shiburingaru Card Text:[C] Run AroundSwitch this Pokémon with 1 of your Benched Pokémon.[CC] Peck (20)
Plated Slagwurm (Foil) (MRD) from Mirrodin, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Justin Sweet Card Text:Plated Slagwurm can't be the target of spells or abilities your opponents control.