AttackContinuous Spin
Flip a coin until you get tails. This attack does 10 damage times the number of heads.

Staryu is Pokédex #120, generation 1 (Kanto). Staryu is a Basic Water Pokémon with 60 HP. The card lists Starmie, Starmie (#121) under evolves to.
Staryu sits at 29/162 in BREAKthrough, position 29 of 165. Before it is 28 Seaking, and after it is 30 Starmie. The set belongs to the XY series. It was released on November 4, 2015. The printed size is 162. This checklist is longer, at 165 cards. The listed rarity is Common.
The attack Continuous Spin lists 10× damage. The cost is Colorless. Flip a coin until you get tails. This attack does 10 damage times the number of heads. Weakness is Grass ×2. Retreat cost is 1. The flavor text reads "It appears in large numbers by seashores. At night, its central core flashes with a red light."
Staryu (#120) has 29 other cards in the catalog. Those other cards are in 27 sets. The other printings with a release date run from 1999 to 2026. The earliest other card is Staryu 65/102 in Base (1999). That card lists 40 HP, and this one lists 60 HP. Both list the rarity Common. Keiji Kinebuchi illustrated that card, and Shigenori Negishi illustrated this one. 19 other cards of Staryu list a different HP.
The illustrator line reads Shigenori Negishi. I count 151 other cards in the catalog with that illustrator.
BREAKthrough set binder is where a full BREAKthrough set goes. This card fills one slot there. A generation binder holds one card of each species. Staryu can fill a slot in Generation 1 binder (Kanto). I still need this card.
Flip a coin until you get tails. This attack does 10 damage times the number of heads.
It appears in large numbers by seashores. At night, its central core flashes with a red light.
BREAKthrough, in the XY series. It was released on November 4, 2015. The printed size is 162.
29/162. It is entry 29 of 165 in this checklist.
Shigenori Negishi. The catalog lists 151 other cards with that illustrator.
Common.
Staryu #120, generation 1 (Kanto).
Continuous Spin (10×).