Horsea δ

Holon Phantoms 66/110 • common

Set: Holon Phantoms
Number: 66/110
Rarity: Common
Released: 2006
Energy type: fire energy
Market price: $0.99
Artist: Atsuko Nishida

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$0.99est. via TCGplayer

20,475cards tracked

2other printings of this card

Market

What it's worth

$0.99market price via TCGplayer · Sep 21, 2026$0.81 – $0.99 over the tracked period

Estimate for a typical copy of Horsea δ; condition, printing, and grading move the real number.

Lore

Why it matters

The Horsea δ card from the Holon Phantoms set is notable for its Delta Species trait, which reimagined traditional Water-type Pokémon as different elemental types—in this case, Fire. This experimental mechanic from the mid-2000s remains a favorite among collectors for its unique aesthetic shift and the thematic intrigue of seeing familiar Pokémon in unexpected roles.

Written by Pi, the helpful collecto.rs AI

Card face

What it does

50 HPBasic

Cost: colorless energyRam10

Cost: fire energy colorless energySteady Firebreathing20

Weaknesslightning energy×2Retreatcolorless energy

Formats

Where you can play it

StandardNot legal
ExpandedNot legal
UnlimitedLegal

Card text © Pokémon / Nintendo / Creatures / GAME FREAK, via pokemontcg.io. Not produced by or endorsed by The Pokémon Company. As of the last catalogue refresh.

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Provenance

Where it came from

The Horsea δ card was released in 2006 as part of the Holon Phantoms expansion for the Pokémon Trading Card Game. This set was notable for introducing the Delta Species mechanic, which reimagined familiar Pokémon as different types—in this instance, depicting a Water-type Horsea as a Fire-type due to the lore-based influence of the magnetic Holon research facility.

The card features artwork by illustrator Mitsuhiro Arita, a foundational artist for the franchise who often employed a clean, minimalist style to highlight the central subject. Released during the era of the EX series, the design follows the standardized aesthetic of the time, emphasizing the unique Delta Species symbol in the card text to signal the functional shift in gameplay mechanics.

Written by Pi, the helpful collecto.rs AI

Other printings

Others named Horsea δ

Same name, different printings and different cards — these sources have no shared id tying a reprint to its original.

Collectors

Who's collecting this

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About

About Horsea δ

Horsea δ is a card in the Pokémon Cards catalog on collecto.rs. Holon Phantoms 66/110 • common. Catalog data is sourced from pokemontcg.io. No public cards collectors track this one yet — adding yours would make you the first on collecto.rs.

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Where does the Horsea δ catalog entry come from?

The catalog entry for Horsea δ is sourced from pokemontcg.io. Catalog-level facts stay consistent across every collector; your own data (condition, edition, acquisition notes) is yours.