AbilityEnergy Guard
As long as Shelgon has any basic Energy cards attached to it, damage done to Shelgon by an opponent's attack is reduced by 10 (after applying Weakness and Resistance).

Dragon is a set in the EX series. It was released on November 24, 2003. The printed size is 97. This checklist is longer, at 100 cards. Shelgon is 41/97, in position 41 of 100 on this checklist. Before it is 40 Seadra, and after it is 42 Shelgon. The listed rarity is Uncommon.
Shelgon is a Stage 1 Colorless Pokémon with 70 HP. In the Pokédex this is Shelgon (#372), generation 3 (Hoenn). The card says it evolves from Bagon. In this catalog that name is Bagon (#371). The card lists Salamence, Salamence (#373) under evolves to.
Yuka Morii illustrated this card. The same name is on 204 other cards in the catalog.
Shelgon (#372) has 17 other cards in the catalog. Those other cards are in 15 sets. The other printings with a release date run from 2003 to 2025. The earliest other card is Shelgon 20/97 in Dragon (2003). That card lists 80 HP, and this one lists 70 HP. The rarity there is Rare, and here it is Uncommon. Mitsuhiro Arita illustrated that card, and Yuka Morii illustrated this one. 14 other cards of Shelgon list a different HP.
Energy Guard is listed as Poké-Body. As long as Shelgon has any basic Energy cards attached to it, damage done to Shelgon by an opponent's attack is reduced by 10 (after applying Weakness and Resistance). The attack Rollout lists 20 damage. The cost is Colorless, Colorless. Retreat cost is 2.
I keep a set binder for Dragon, meant to hold every card of that set. This card is one slot in the Dragon set binder. A generation binder holds one card of each species. Shelgon can fill a slot in Generation 3 binder (Hoenn). Themed lists that include this exact card are Yuka Morii clay cards. I still need this card.
As long as Shelgon has any basic Energy cards attached to it, damage done to Shelgon by an opponent's attack is reduced by 10 (after applying Weakness and Resistance).
Dragon, in the EX series. It was released on November 24, 2003. The printed size is 97.
41/97. It is entry 41 of 100 in this checklist.
Yuka Morii. The catalog lists 204 other cards with that illustrator.
Uncommon.
Shelgon #372, generation 3 (Hoenn).
Rollout (20).