Card text
During this turn, your Single Strike Pokémon's attacks do 20 more damage to your opponent's Active Pokémon for each Prize card your opponent has taken (before applying Weakness and Resistance).

Karen's Conviction is a Trainer card. The listed subtypes are Supporter and Single Strike.
Karen's Conviction sits at 144/198 in Chilling Reign, position 144 of 233. Before it is 143 Justified Gloves, and after it is 145 Klara. The set belongs to the Sword & Shield series. It was released on 18 June 2021. The printed size is 198. This checklist is longer, at 233 cards. The listed rarity is Uncommon.
The card text says: During this turn, your Single Strike Pokémon's attacks do 20 more damage to your opponent's Active Pokémon for each Prize card your opponent has taken (before applying Weakness and Resistance). The card text says: You may play only 1 Supporter card during your turn. The regulation mark is E.
The illustrator line reads Ken Sugimori. I count 1,112 other cards in the catalog with that illustrator.
Chilling Reign set binder is where a full Chilling Reign set goes. This card fills one slot there. Themed lists that include this exact card are Single Strike. I still need this card.
During this turn, your Single Strike Pokémon's attacks do 20 more damage to your opponent's Active Pokémon for each Prize card your opponent has taken (before applying Weakness and Resistance).
You may play only 1 Supporter card during your turn.
Chilling Reign, in the Sword & Shield series. It was released on 18 June 2021. The printed size is 198.
144/198. It is entry 144 of 233 in this checklist.
Ken Sugimori. The catalog lists 1,112 other cards with that illustrator.
Uncommon.
E.