Nightmare Penguin is a Aqua Effect Monster with Attribute WATER, Level 4, ATK 900, DEF 1800.
Monster cards contest the field through Summons, battles, and effects—check Level/Rank/Link and Attribute for Extra Deck or searchers.
On the current TCG and OCG Forbidden & Limited lists tracked here, Nightmare Penguin is Unlimited.
YGOPRODeck lists Nightmare Penguin for these formats: GOAT, OCG GOAT, Duel Links, Common Charity, Edison, Speed Duel, TCG, OCG, Master Duel.
Nightmare Penguin belongs to the Penguin archetype—use that tag when searching for engine pieces and tech options.
A listed print of Nightmare Penguin appears in Dark Revelation Volume 3 (DR3-EN070) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Nightmare Penguin is about $0.16 on Cardmarket (prices change frequently).
