AbilityMind Hat
Once during your turn, you may use this Ability. Each player discards a card from their hand. (Your opponent discards first.)

Shining Fates Shiny Vault is a set in the Sword & Shield series. It was released on 19 February 2021. The printed size is 122, and the checklist is the same length. Hatterene is SV056/122, in position 56 of 122 on this checklist. Before it is SV055 Hattrem, and after it is SV057 Milcery. The listed rarity is Rare Shiny.
Hatterene is a Stage 2 Psychic Pokémon with 150 HP. In the Pokédex this is Hatterene (#858), generation 8 (Galar). The card says it evolves from Hattrem. In this catalog that name is Hattrem (#857).
Akira Komayama illustrated this card. The same name is on 239 other cards in the catalog.
Hatterene (#858) has 7 other cards in the catalog. Those other cards are in 6 sets. The other printings with a release date run from 2019 to 2023. The earliest other card is Hatterene V SWSH055/307 in SWSH Black Star Promos (2019). That card is named Hatterene V, while this one is Hatterene. That card lists 200 HP, and this one lists 150 HP. The rarity there is Promo, and here it is Rare Shiny. PLANETA Igarashi illustrated that card, and Akira Komayama illustrated this one. 5 other cards of Hatterene list a different HP.
Mind Hat is listed as Ability. Once during your turn, you may use this Ability. Each player discards a card from their hand. (Your opponent discards first.) The attack Dripping Grudge lists no damage number. The cost is Psychic. Put 1 damage counter on your opponent's Active Pokémon for each Pokémon in your discard pile. Weakness is Darkness ×2. Resistance is Fighting -30. Retreat cost is 2. The flavor text reads "It emits psychic power strong enough to cause headaches as a deterrent to the approach of others." The regulation mark is D.
I keep a set binder for Shining Fates Shiny Vault, meant to hold every card of that set. This card is one slot in the Shining Fates Shiny Vault set binder. A generation binder holds one card of each species. Hatterene can fill a slot in Generation 8 binder (Galar). I still need this card.
Once during your turn, you may use this Ability. Each player discards a card from their hand. (Your opponent discards first.)
Put 1 damage counter on your opponent's Active Pokémon for each Pokémon in your discard pile.
It emits psychic power strong enough to cause headaches as a deterrent to the approach of others.
Shining Fates Shiny Vault, in the Sword & Shield series. It was released on 19 February 2021. The printed size is 122.
SV056/122. It is entry 56 of 122 in this checklist.
Akira Komayama. The catalog lists 239 other cards with that illustrator.
Rare Shiny.
Hatterene #858, generation 8 (Galar).
D.
Dripping Grudge.