AttackDouble Headbutt
Flip 2 coins. This attack does 10 damage times the number of heads.

Seel is Pokédex #086, generation 1 (Kanto). Seel is a Basic Water Pokémon with 50 HP. The card lists Dewgong, Dewgong (#087) under evolves to.
Seel sits at 95/144 in Skyridge, position 95 of 182. Before it is 94 Seel, and after it is 96 Shuckle. The set belongs to the E-Card series. It was released on May 12, 2003. The printed size is 144. This checklist is longer, at 182 cards. The listed rarity is Common.
The attack Double Headbutt lists 10× damage. The cost is Colorless. Flip 2 coins. This attack does 10 damage times the number of heads. Ice Beam is another attack lists 10 damage. The cost is Water, Colorless. Flip a coin. If heads, the Defending Pokémon is now Paralyzed. Weakness is Lightning ×2. Retreat cost is 1.
Seel (#086) has 19 other cards in the catalog. Those other cards are in 19 sets. The other printings with a release date run from 1999 to 2026. The earliest other card is Seel 41/102 in Base (1999). That card lists 60 HP, and this one lists 50 HP. The rarity there is Uncommon, and here it is Common. Ken Sugimori illustrated that card, and Yukiko Baba illustrated this one. 15 other cards of Seel list a different HP.
The illustrator line reads Yukiko Baba. I count 151 other cards in the catalog with that illustrator.
Skyridge set binder is where a full Skyridge set goes. This card fills one slot there. A generation binder holds one card of each species. Seel can fill a slot in Generation 1 binder (Kanto). I still need this card.
Flip 2 coins. This attack does 10 damage times the number of heads.
Flip a coin. If heads, the Defending Pokémon is now Paralyzed.
Skyridge, in the E-Card series. It was released on May 12, 2003. The printed size is 144.
95/144. It is entry 95 of 182 in this checklist.
Yukiko Baba. The catalog lists 151 other cards with that illustrator.
Common.
Seel #086, generation 1 (Kanto).
Double Headbutt (10×) and Ice Beam (10).