What is Aggron's evolution line?

Aggron evolves from Aron, which then evolves into Lairon, and finally into Aggron. It is the final stage of a three-stage evolution line.

What year was the Mysterious Treasures set released?

The Mysterious Treasures set, from which this Aggron card originates, was released in 2007.

What is the weakness of this Aggron card?

This Aggron card has a weakness to Fire type Pokémon, meaning it takes an additional 40 damage from Fire attacks.

Who illustrated this Aggron card?

The artwork for this Aggron card was illustrated by Kouki Saitou.

What makes the "Heap Up" attack unique?

The "Heap Up" attack allows you to search your discard pile for all Energy cards, potentially dealing extra damage if Special Energy cards are found, and then shuffles them back into your deck.

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Aggron — Mysterious Treasures Pokémon card

AggronMysterious Treasures #1 Pokémon Card

Mysterious Treasures·#1·2007

Aggron, the formidable Steel/Rock type Iron Armor Pokémon from Generation III, is a widely recognized creature known for its powerful presence and territorial nature. This particular holographic rare Aggron card from the 2007 Mysterious Treasures set stands out with its unique attack mechanics and captivating artwork. On this page, visitors will discover comprehensive details about Aggron’s Pokédex lore, the card’s specific attack costs, damage, effects, weakness, and its full edition history.

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Card Number: #1
Release Date: August 21, 2007
Language: EN
Set Code: mt

Aggron, the Iron Armor Pokémon, is a formidable Steel/Rock type introduced in Generation III. This colossal creature is the final evolution of Aron, evolving from Lairon. It is known for its immense strength and its territorial nature, often claiming an entire mountain as its own. Aggron’s natural habitat consists of mountains and caves, where it relentlessly patrols its territory, repairing any damage to the mountainside. Its diet primarily consists of iron, which it obtains by digging tunnels through bedrock with its sharp steel horns. This behavior not only sustains it but also helps shape the landscape. In the games, Aggron is a powerful physical attacker with high defense, making it a reliable tank in many teams. In the anime, it often appears as a protector of its environment or as a challenging opponent for trainers. Its imposing appearance and unwavering resolve have made it a fan favorite, symbolizing strength and resilience within the Pokémon world. Aggron’s Steel/Rock typing gives it resistances to Normal, Flying, Rock, Bug, Steel, Psychic, Ice, Dragon, and Fairy types, but also leaves it vulnerable to Fighting, Ground, and Water moves.

Last updated: April 11, 2026