Dratini is Pokédex #147, generation 1 (Kanto). Erika's Dratini is a Basic Colorless Pokémon with 40 HP. The card lists level 14. The card lists Dragonair, Dragonair (#148) under evolves to.
Erika's Dratini sits at 42/132 in Gym Heroes, position 42 of 132. Before it is 41 Brock's Lickitung, and after it is 43 Erika's Exeggcute. The set belongs to the Gym series. It was released on 14 August 2000. The printed size is 132, and the checklist is the same length. The listed rarity is Uncommon.
Strange Barrier is listed as Pokémon Power. Whenever an attack by a Basic Pokémon (including your own) does 20 or more damage to Erika's Dratini (after applying Weakness and Resistance), reduce that damage to 10. (Any other effects of attacks still happen.) This power stops working while Erika's Dratini is Asleep, Confused, or Paralyzed. The attack Tail Strike lists 10+ damage. The cost is Colorless, Colorless. Flip a coin. If heads, this attack does 10 damage plus 20 more damage; if tails, this attack does 10 damage. Resistance is Psychic -30. Retreat cost is 1.
Dratini (#147) has 30 other cards in the catalog. Those other cards are in 24 sets. The other printings with a release date run from 1999 to 2026. The earliest other card is Dratini 26/102 in Base (1999). That card is named Dratini, while this one is Erika's Dratini. Both list 40 HP. Both list the rarity Uncommon. 19 other cards of Dratini list a different HP.
The illustrator line reads Ken Sugimori. I count 1,112 other cards in the catalog with that illustrator.
Gym Heroes set binder is where a full Gym Heroes set goes. This card fills one slot there. A generation binder holds one card of each species. Dratini can fill a slot in Generation 1 binder (Kanto). Themed lists that include this exact card are Trainer's Pokémon, Dratini, Dragonair, and Dragonite, Kanto Gym Leaders and their Pokémon, and Erika and her Pokémon. I still need this card.
Whenever an attack by a Basic Pokémon (including your own) does 20 or more damage to Erika's Dratini (after applying Weakness and Resistance), reduce that damage to 10. (Any other effects of attacks still happen.) This power stops working while Erika's Dratini is Asleep, Confused, or Paralyzed.
Flip a coin. If heads, this attack does 10 damage plus 20 more damage; if tails, this attack does 10 damage.
Gym Heroes, in the Gym series. It was released on 14 August 2000. The printed size is 132.
42/132. It is entry 42 of 132 in this checklist.
Ken Sugimori. The catalog lists 1,112 other cards with that illustrator.
Uncommon.
Dratini #147, generation 1 (Kanto).
Tail Strike (10+).