AttackCold Snap
Your opponent can't play any Trainer cards from their hand during their next turn. If 1 of your Pokémon used Cold Snap during your last turn, this attack can't be used.

Walrein is Pokédex #365, generation 3 (Hoenn). Walrein is a Stage 2 Water Pokémon with 160 HP. The card says it evolves from Sealeo. In this catalog that name is Sealeo (#364).
Walrein sits at 52/236 in Cosmic Eclipse, position 52 of 272. Before it is 51 Sealeo, and after it is 53 Kyogre. The set belongs to the Sun & Moon series. It was released on November 1, 2019. The printed size is 236. This checklist is longer, at 272 cards. The listed rarity is Rare.
The attack Cold Snap lists 60 damage. The cost is Water. Your opponent can't play any Trainer cards from their hand during their next turn. If 1 of your Pokémon used Cold Snap during your last turn, this attack can't be used. Blizzard is another attack lists 120 damage. The cost is Water, Colorless, Colorless, Colorless. This attack does 10 damage to each of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.) Weakness is Metal ×2. Retreat cost is 4. The flavor text reads "It shatters ice with its big tusks. Its thick blubber repels not only the cold, but also enemy attacks."
Walrein (#365) has 12 other cards in the catalog. Those other cards are in 12 sets. The other printings with a release date run from 2004 to 2024. The earliest other card is Team Aqua's Walrein 6/95 in Team Magma vs Team Aqua (2004). That card is named Team Aqua's Walrein, while this one is Walrein. That card lists 120 HP, and this one lists 160 HP. The rarity there is Rare Holo, and here it is Rare. Ken Ikuji illustrated that card, and Ayaka Yoshida illustrated this one. Retreat cost there is 2, and here it is 4. 12 other cards of Walrein list a different HP.
The illustrator line reads Ayaka Yoshida. I count 128 other cards in the catalog with that illustrator.
Cosmic Eclipse set binder is where a full Cosmic Eclipse set goes. This card fills one slot there. A generation binder holds one card of each species. Walrein can fill a slot in Generation 3 binder (Hoenn). I still need this card.
Your opponent can't play any Trainer cards from their hand during their next turn. If 1 of your Pokémon used Cold Snap during your last turn, this attack can't be used.
This attack does 10 damage to each of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)
It shatters ice with its big tusks. Its thick blubber repels not only the cold, but also enemy attacks.
Cosmic Eclipse, in the Sun & Moon series. It was released on November 1, 2019. The printed size is 236.
52/236. It is entry 52 of 272 in this checklist.
Ayaka Yoshida. The catalog lists 128 other cards with that illustrator.
Rare.
Walrein #365, generation 3 (Hoenn).
Cold Snap (60) and Blizzard (120).