AttackTeary Eyes
During your opponent's next turn, any damage done to Aron by attacks is reduced by 10.

Ruby & Sapphire is a set in the EX series. It was released on 1 July 2003. The printed size is 109, and the checklist is the same length. Aron is 49/109, in position 49 of 109 on this checklist. Before it is 48 Wailmer, and after it is 50 Aron. The listed rarity is Common.
Aron is a Basic Metal Pokémon with 40 HP. In the Pokédex this is Aron (#304), generation 3 (Hoenn). The card lists Lairon, Lairon (#305) under evolves to.
Mitsuhiro Arita illustrated this card. The same name is on 721 other cards in the catalog.
Aron (#304) has 22 other cards in the catalog. Those other cards are in 20 sets. The other printings with a release date run from 2003 to 2024. The earliest other card is Aron 25/109 in Ruby & Sapphire (2003). That card lists 50 HP, and this one lists 40 HP. The rarity there is Uncommon, and here it is Common. Midori Harada illustrated that card, and Mitsuhiro Arita illustrated this one. 21 other cards of Aron list a different HP.
The attack Teary Eyes lists no damage number. The cost is Colorless. During your opponent's next turn, any damage done to Aron by attacks is reduced by 10. Ram is another attack lists 20 damage. The cost is Colorless, Colorless. Weakness is Fire ×2. Resistance is Grass -30. Retreat cost is 1.
I keep a set binder for Ruby & Sapphire, meant to hold every card of that set. This card is one slot in the Ruby & Sapphire set binder. A generation binder holds one card of each species. Aron can fill a slot in Generation 3 binder (Hoenn). Themed lists that include this exact card are Mitsuhiro Arita cards. I still need this card.
During your opponent's next turn, any damage done to Aron by attacks is reduced by 10.
Ruby & Sapphire, in the EX series. It was released on 1 July 2003. The printed size is 109.
49/109. It is entry 49 of 109 in this checklist.
Mitsuhiro Arita. The catalog lists 721 other cards with that illustrator.
Common.
Aron #304, generation 3 (Hoenn).
Teary Eyes and Ram (20).