AttackStatic Electricity
For each Mareep in play, you may search your deck for a Lightning Energy card and attach it to Mareep. Shuffle your deck afterward.

Mareep is Pokédex #179, generation 2 (Johto). Mareep is a Basic Lightning Pokémon with 40 HP. The card lists level 12. The card lists Flaaffy, Flaaffy (#180) under evolves to.
Mareep sits at 65/111 in Neo Genesis, position 65 of 111. Before it is 64 Mantine, and after it is 66 Marill. The set belongs to the Neo series. It was released on December 16, 2000. The printed size is 111, and the checklist is the same length. The listed rarity is Common.
The attack Static Electricity lists no damage number. The cost is Lightning. For each Mareep in play, you may search your deck for a Lightning Energy card and attach it to Mareep. Shuffle your deck afterward. Thundershock is another attack lists 20 damage. The cost is Lightning, Lightning. Flip a coin. If heads, the Defending Pokémon is now Paralyzed. Weakness is Fighting ×2. Retreat cost is 1. The flavor text reads "If static electricity builds in its body, its fleece doubles in volume. Touching it will shock you."
Mareep (#179) has 27 other cards in the catalog. Those other cards are in 26 sets. The other printings with a release date run from 2001 to 2026. The earliest other card is Mareep 58/75 in Neo Discovery (2001). That card lists 50 HP, and this one lists 40 HP. Both list the rarity Common. Atsuko Nishida illustrated that card, and Ken Sugimori illustrated this one. 22 other cards of Mareep list a different HP.
The illustrator line reads Ken Sugimori. I count 1,112 other cards in the catalog with that illustrator.
Neo Genesis set binder is where a full Neo Genesis set goes. This card fills one slot there. A generation binder holds one card of each species. Mareep can fill a slot in Generation 2 binder (Johto). I still need this card.
For each Mareep in play, you may search your deck for a Lightning Energy card and attach it to Mareep. Shuffle your deck afterward.
Flip a coin. If heads, the Defending Pokémon is now Paralyzed.
If static electricity builds in its body, its fleece doubles in volume. Touching it will shock you.
Neo Genesis, in the Neo series. It was released on December 16, 2000. The printed size is 111.
65/111. It is entry 65 of 111 in this checklist.
Ken Sugimori. The catalog lists 1,112 other cards with that illustrator.
Common.
Mareep #179, generation 2 (Johto).
Static Electricity and Thundershock (20).