Face the Unknown
Undaunted pushed the LEGEND mechanic further with Rayquaza & Deoxys LEGEND and introduced the powerful Umbreon and Espeon Prime cards.
hgss3 Difficulty
3/5 to complete
Avg Card Value
Varies
Market average
Top Card
Umbreon Prime
See market
Rarity Tier
Overview
Undaunted, released August 18, 2010, is the third HGSS expansion with 91 cards. It featured Rayquaza & Deoxys LEGEND and Entei & Suicune LEGEND as its premium duo cards. The set also included popular Eeveelution Primes — Espeon and Umbreon — which are among the most collected cards of the HGSS era.
Best for
- People bridging EX into DP checklist habits
- collectors pricing Undaunted (2010, 91 cards) as DP / Platinum era cardboard — not as generic “old cards”
- buyers who already know Umbreon Prime / Espeon Prime is the expensive row in Undaunted
Skip this path if
- you only shop modern illustration rares and will not learn DP numbering
- you expect every card in Undaunted to carry similar resale (bulk is bulk)
Common mistakes
The expensive mistake on Undaunted is confusing base DP with later era expansions when reading listings. Set code hgss3 (2010) is the membership test — character name alone will not save a bad buy. Budget Umbreon Prime / Espeon Prime as priority singles; the other 89 cards are not the same project.
What to check first
Pull up Umbreon Prime / Espeon Prime first — number, finish, and surface — then decide if the ask is real. Parallel check: exact expansion code, reverse vs standard holo, and any LV.X-style chase. Only after that does the full Undaunted checklist tell you what is left.
Most valuable cards
Rayquaza & Deoxys LEGEND (top #89 / bottom #90) is the set's most valuable duo. Umbreon Prime (#86) and Espeon Prime (#81) are extremely popular with Eeveelution collectors. Scizor Prime (#84) and Houndoom Prime (#82) are also sought after. Raichu Prime rounds out the notable Primes.
Cards from Undaunted
Tap any card to see price history and details.
28 of 91 
Bellossom
Espeon
Forretress
Gliscor
Dodrio
Leafeon
Tropius
Jolteon
Raticate
Unown
Doduo
Hitmonchan
Misdreavus
Pineco
Sneasel
Flower Shop Lady
Metal Energy
Espeon
Houndoom
Raichu
Scizor
Slowking
Umbreon
Kyogre & Groudon LEGEND
Kyogre & Groudon LEGEND
Rayquaza & Deoxys LEGEND
Rayquaza & Deoxys LEGEND
Alph Lithograph
Tips to finish the set
At 91 cards, Undaunted is the smallest HGSS expansion. The Eeveelution Primes drive significant demand. Rayquaza & Deoxys LEGEND is the premium chase pair. This smaller set size makes completion more achievable than other HGSS expansions.
How to Complete This Set
- 01
Identify Undaunted cards by set code hgss3 / symbol — do not sort by art alone
- 02
Split bulk commons/uncommons from holos and special rarities before pricing
- 03
Track Umbreon Prime and Espeon Prime as priority singles, not pack EV fantasies
- 04
Scan or checklist-gap the rest after the chase budget is honest
Scan with the app
Pokex distinguishes the Eeveelution Prime cards from regular Espeon and Umbreon printings across different sets. The scanner identifies LEGEND card halves and helps assess the unique textured Prime holo patterns.
Common questions
01 What makes Umbreon and Espeon Prime special?
Umbreon Prime (#86) and Espeon Prime (#81) from Undaunted are among the most collected Eeveelution cards. Their unique Prime holographic texture and strong card designs make them display favorites. Near-mint copies sell for $30–$80 each.
02 What is Rayquaza & Deoxys LEGEND worth?
A complete Rayquaza & Deoxys LEGEND pair (top #89 / bottom #90) in near-mint condition sells for $80–$200. It features two of the most popular legendary Pokemon combined in a striking dual artwork.
03 How many cards are in Undaunted?
Undaunted contains 91 cards including 2 LEGEND pairs, multiple Prime cards, holographic rares, uncommons, and commons. It is the smallest HGSS expansion.
04 Is Undaunted a good set for Eevee collectors?
Absolutely. Undaunted features both Espeon Prime and Umbreon Prime, which are fan-favorite Eeveelution cards. Collectors seeking Eeveelutions across all eras consider these Prime cards must-haves.
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