If the Defending Pokémon already has any damage counters on it, this attack does 40 damage plus 40 more damage.
During your opponent's next turn, any damage done to Aggron by attacks is reduced by 20 (after applying Weakness and Resistance).
HS—Triumphant was released in 2010. It belongs to the HeartGold & SoulSilver series.
Set size is 103 cards, which categorizes HS—Triumphant as mid-size. As of 2026, the set is 16 years old and fits a legacy-era profile.
Aggron (#1) is one of the Rare Holo prints in this expansion.
Aggron is a HS—Triumphant card from the 2010 release window. The printed flavor text states: "You can tell its age by the length of its iron horns.
It claims an entire mountain as its territory." Its card type is Pokémon. The rarity label is Rare Holo.
Printed HP is 140. Energy typing is Metal.
This gives collectors a clear identity footprint for the print. This card evolves from Lairon.
Latest market snapshots place Aggron in HS—Triumphant at roughly $6.67. Price action is stable over 7 days, moving only 0.0%.
Current value is elevated versus the 30-day mean ($6.39), by 4.4%. The 90-day window shows a floor near $3.55 and a peak around $6.67 (47% total spread), which maps to moderate-volatility movement.
This version is categorized as Rare Holo.
Collectors tracking Aggron often benchmark it against other Aggron cards. The current sample spans 6 comparable cards from 6 sets.
In this sample, pricing ranges between $0.07 and $0.49 (600% total span). Relative to the alternative average ($0.29), this card is +2187%.
Notable alternatives include Aggron #111 (Chilling Reign) at $0.22, Aggron #123 (Darkness Ablaze) at $0.31, Aggron #89 (Crown Zenith) at $0.22, and Aggron #122 (Twilight Masquerade) at $0.07.
Pricing context for collectors: Short-term movement is stable (0.0% over 7 days), with price action clustered near recent averages. With a 47% 90-day spread ($3.55-$6.67), this card currently tracks as moderate-volatility.
Current value is 4.4% above its 30-day reference ($6.39). Graded context points to a substantial premium curve, with PSA 10 at +7141% above raw pricing.
PSA 9 is currently around $45.05, while PSA 10 is $482.96.
