AttackThundershock
Flip a coin. If heads, the Defending Pokémon is now Paralyzed.

Manectric is Pokédex #310, generation 3 (Hoenn). Manectric is a Stage 1 Lightning Pokémon with 70 HP. The card says it evolves from Electrike. In this catalog that name is Electrike (#309).
Manectric sits at 39/109 in Ruby & Sapphire, position 39 of 109. Before it is 38 Linoone, and after it is 40 Marshtomp. The set belongs to the EX series. It was released on 1 July 2003. The printed size is 109, and the checklist is the same length. The listed rarity is Uncommon.
The attack Thundershock lists 20 damage. The cost is Colorless, Colorless. Flip a coin. If heads, the Defending Pokémon is now Paralyzed. Gigashock is another attack lists 40 damage. The cost is Lightning, Colorless, Colorless. Does 10 damage to 2 of your opponent's Benched Pokémon (1 if there is only 1). (Don't apply Weakness and Resistance for Benched Pokémon.) Weakness is Fighting ×2. Resistance is Metal -30. Retreat cost is 1.
Manectric (#310) has 34 other cards in the catalog. Those other cards are in 23 sets. The other printings with a release date run from 2003 to 2026. The earliest other card is Manectric 9/109 in Ruby & Sapphire (2003). Both list 70 HP. The rarity there is Rare Holo, and here it is Uncommon. Mitsuhiro Arita illustrated that card, and Ken Sugimori illustrated this one. 30 other cards of Manectric list a different HP.
The illustrator line reads Ken Sugimori. I count 1,112 other cards in the catalog with that illustrator.
Ruby & Sapphire set binder is where a full Ruby & Sapphire set goes. This card fills one slot there. A generation binder holds one card of each species. Manectric can fill a slot in Generation 3 binder (Hoenn). I still need this card.
Flip a coin. If heads, the Defending Pokémon is now Paralyzed.
Does 10 damage to 2 of your opponent's Benched Pokémon (1 if there is only 1). (Don't apply Weakness and Resistance for Benched Pokémon.)
Ruby & Sapphire, in the EX series. It was released on 1 July 2003. The printed size is 109.
39/109. It is entry 39 of 109 in this checklist.
Ken Sugimori. The catalog lists 1,112 other cards with that illustrator.
Uncommon.
Manectric #310, generation 3 (Hoenn).
Thundershock (20) and Gigashock (40).