AbilityDual Armor
As long as Magcargo has any Fighting Energy attached to it, Magcargo is both Fire and Fighting type.

Unseen Forces is a set in the EX series. It was released on August 1, 2005. The printed size is 115. This checklist is longer, at 145 cards. Magcargo is 41/115, in position 43 of 145 on this checklist. Before it is 40 Lanturn, and after it is 42 Miltank. The listed rarity is Uncommon.
Magcargo is a Stage 1 Fire Pokémon with 80 HP. In the Pokédex this is Magcargo (#219), generation 2 (Johto). The card says it evolves from Slugma. In this catalog that name is Slugma (#218).
Tomokazu Komiya illustrated this card. The same name is on 248 other cards in the catalog.
Magcargo (#219) has 29 other cards in the catalog. Those other cards are in 20 sets. The other printings with a release date run from 2001 to 2026. The earliest other card is Magcargo 33/64 in Neo Revelation (2001). Both list 80 HP. Both list the rarity Uncommon. Shin-ichi Yoshida illustrated that card, and Tomokazu Komiya illustrated this one. Retreat cost there is 3, and here it is 2. 21 other cards of Magcargo list a different HP.
Dual Armor is listed as Poké-Body. As long as Magcargo has any Fighting Energy attached to it, Magcargo is both Fire and Fighting type. The attack Smokescreen lists 30 damage. The cost is Fire, Colorless. If the Defending Pokémon tries to attack during your opponent's next turn, your opponent flips a coin. If tails, that attack does nothing. Extra Flame is another attack lists 40+ damage. The cost is Fire, Colorless, Colorless. If the Defending Pokémon is Pokémon-ex, this attack does 40 damage plus 30 more damage. Weakness is Water ×2. Retreat cost is 2.
I keep a set binder for Unseen Forces, meant to hold every card of that set. This card is one slot in the Unseen Forces set binder. A generation binder holds one card of each species. Magcargo can fill a slot in Generation 2 binder (Johto). I still need this card.
As long as Magcargo has any Fighting Energy attached to it, Magcargo is both Fire and Fighting type.
If the Defending Pokémon tries to attack during your opponent's next turn, your opponent flips a coin. If tails, that attack does nothing.
If the Defending Pokémon is Pokémon-ex, this attack does 40 damage plus 30 more damage.
Unseen Forces, in the EX series. It was released on August 1, 2005. The printed size is 115.
41/115. It is entry 43 of 145 in this checklist.
Tomokazu Komiya. The catalog lists 248 other cards with that illustrator.
Uncommon.
Magcargo #219, generation 2 (Johto).
Smokescreen (30) and Extra Flame (40+).