Your search for "Pain Magnification 121" revealed the following:
Pain Magnification (DIS) from Dissension, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Aleksi Briclot Card Text:Whenever an opponent is dealt 3 or more damage by a single source, that player discards a card.
Pain Magnification (Foil) (DIS) from Dissension, available at 401 Games Canada. Rarity: Uncommon Finish: Foil Artist: Aleksi Briclot Card Text:Whenever an opponent is dealt 3 or more damage by a single source, that player discards a card.
Pain Magnification - DIS Reprint (PLST) from The List, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Aleksi Briclot Card Text:Whenever an opponent is dealt 3 or more damage by a single source, that player discards a card....