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

Dragon is a set in the EX series. It was released on November 24, 2003. The printed size is 97. This checklist is longer, at 100 cards. Horsea is 58/97, in position 58 of 100 on this checklist. Before it is 57 Grimer, and after it is 59 Houndour. The listed rarity is Common.
Horsea is a Basic Water Pokémon with 50 HP. In the Pokédex this is Horsea (#116), generation 1 (Kanto). The card lists Seadra, Seadra (#117) under evolves to.
Midori Harada illustrated this card. The same name is on 352 other cards in the catalog.
Horsea (#116) has 27 other cards in the catalog. Those other cards are in 23 sets. The other printings with a release date run from 1999 to 2024. The earliest other card is Horsea 49/62 in Fossil (1999). That card lists 40 HP, and this one lists 50 HP. Both list the rarity Common. Mitsuhiro Arita illustrated that card, and Midori Harada illustrated this one. 18 other cards of Horsea list a different HP.
The attack Paralyzing Gaze lists no damage number. The cost is Colorless. Flip a coin. If heads, the Defending Pokémon is now Paralyzed. Wave Splash is another attack lists 20 damage. The cost is Colorless, Colorless. Weakness is Lightning ×2. Retreat cost is 1.
I keep a set binder for Dragon, meant to hold every card of that set. This card is one slot in the Dragon set binder. A generation binder holds one card of each species. Horsea can fill a slot in Generation 1 binder (Kanto). I still need this card.
Flip a coin. If heads, the Defending Pokémon is now Paralyzed.
Dragon, in the EX series. It was released on November 24, 2003. The printed size is 97.
58/97. It is entry 58 of 100 in this checklist.
Midori Harada. The catalog lists 352 other cards with that illustrator.
Common.
Horsea #116, generation 1 (Kanto).
Paralyzing Gaze and Wave Splash (20).