Treecko δ

POP Series 4 15/17 • common

Set: POP Series 4
Number: 15/17
Rarity: Common
Released: 2006
Energy type: psychic energy
Market price: $25.68
Artist: Masakazu Fukuda

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$25.68est. via TCGplayer

20,475cards tracked

1other printing of this card

Market

What it's worth

$25.68market price via TCGplayer · Sep 20, 2026$24.70 – $25.72 over the tracked period

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

Lore

Why it matters

This card captures a unique biological anomaly for its subject, shifting the character from its usual typing to psychic. Such variants are highly sought after by collectors for their departure from traditional elemental norms, highlighting a fascinating stylistic period in the history of the game.

Written by Pi, the helpful collecto.rs AI

Card face

What it does

40 HPBasic

Cost: colorless energyPound10

Cost: psychic energyShining Claws10

Flip a coin. If heads, the Defending Pokémon is now Confused.

Weaknessfire energy×2Resistancewater energy-30Retreatcolorless 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 Treecko δ card, numbered 15/17, was released in 2006 as part of the Pokémon Organized Play (POP) Series 4 promotional set. These cards were distributed exclusively through league events, tournaments, and specific community activities, intended to encourage grassroots engagement with the Pokémon Trading Card Game. As a common card in a limited-release set, it served as an accessible way for players to experience the Delta Species mechanic, which introduced unique type-shifting to the competitive meta of the era.

The Delta Species (δ) design concept was a creative departure for the game, featuring Pokémon that were magically altered by the mysterious environment of Holon. The design team opted for metallic, experimental aesthetics to signify these changes, resulting in this Treecko being uniquely typed as Psychic rather than its standard Grass type. The artwork captures the shift in a stark, stylized manner, reflecting the thematic emphasis on elemental distortion that defined the mid-2000s era of the card game.

Written by Pi, the helpful collecto.rs AI

Other printings

Others named Treecko δ

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

Treecko δCrystal Guardians · #68/100 · common · 2006$2.44

Collectors

Who's collecting this

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About

About Treecko δ

Treecko δ is a card in the Pokémon Cards catalog on collecto.rs. POP Series 4 15/17 • 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 Treecko δ catalog entry come from?

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