Your search for "Nightmare Penguin RDS-EN010" revealed the following:
Nightmare Penguin - RDS-EN010 - Common - 1st Edition from Rise of Destiny 1st Edition, available at 401 Games Canada. Rarity: Common Card Text:When this card is flipped face-up, return 1 card on your opponent's side of the field to...
Nightmare Penguin - SDRE-EN017 - Common - 1st Edition from Structure Deck: Realm of the Sea Emperor 1st Edition, available at 401 Games Canada. Rarity: Common Card Text:When this card is flipped face-up, select 1 card your opponent controls, and...
Nightmare Penguin - DT04-EN005 - Duel Terminal Normal Parallel Rare from Duel Terminal 4, available at 401 Games Canada. Rarity: Duel Terminal Normal Parallel Rare Card Text:When this card is flipped face-up, return 1 card your opponent controls to the...
Nightmare Penguin - GLD1-EN021 - Common - Limited Edition from Gold Series, available at 401 Games Canada. Rarity: Common Card Text:When this card is flipped face-up, return 1 card your opponent controls to the owner's hand. All WATER monsters you...
Nightmare Penguin - DR3-EN070 - Common from Dark Revelation Volume 3, available at 401 Games Canada. Rarity: Common Card Text:When this card is flipped face-up, return 1 card on your opponent's side of the field to the owner's hand. All...
Nightmare Penguin - RDS-EN010 - Common - Unlimited from Rise of Destiny Unlimited, available at 401 Games Canada. Rarity: Common Card Text:When this card is flipped face-up, return 1 card on your opponent's side of the field to the owner's...