AttackRock Smash
Flip a coin. If heads, this attack does 30 more damage.

Kalos Starter Set is a set in the XY series. It was released on November 8, 2013. The printed size is 39, and the checklist is the same length. Snorlax is 26/39, in position 26 of 39 on this checklist. Before it is 25 Farfetch'd, and after it is 27 Miltank.
Snorlax is a Basic Colorless Pokémon with 120 HP. In the Pokédex this is Snorlax (#143), generation 1 (Kanto).
Naoki Saito illustrated this card. The same name is on 270 other cards in the catalog.
Snorlax (#143) has 55 other cards in the catalog. Those other cards are in 42 sets. The other printings with a release date run from 1999 to 2026. The earliest other card is Snorlax 11/64 in Jungle (1999). That card lists 90 HP, and this one lists 120 HP. Ken Sugimori illustrated that card, and Naoki Saito illustrated this one. 54 other cards of Snorlax list a different HP.
The attack Rock Smash lists 10+ damage. The cost is Colorless, Colorless, Colorless. Flip a coin. If heads, this attack does 30 more damage. Strength is another attack lists 70 damage. The cost is Colorless, Colorless, Colorless, Colorless. Weakness is Fighting ×2. Retreat cost is 4. The flavor text reads "It is not satisfied unless it eats over 880 pounds of food every day. When it is done eating, it goes promptly to sleep."
I keep a set binder for Kalos Starter Set, meant to hold every card of that set. This card is one slot in the Kalos Starter Set set binder. A generation binder holds one card of each species. Snorlax can fill a slot in Generation 1 binder (Kanto). Themed lists that include this exact card are Snorlax and Munchlax. I still need this card.
Flip a coin. If heads, this attack does 30 more damage.
It is not satisfied unless it eats over 880 pounds of food every day. When it is done eating, it goes promptly to sleep.
Kalos Starter Set, in the XY series. It was released on November 8, 2013. The printed size is 39.
26/39. It is entry 26 of 39 in this checklist.
Naoki Saito. The catalog lists 270 other cards with that illustrator.
Snorlax #143, generation 1 (Kanto).
Rock Smash (10+) and Strength (70).