A Pokémon that has sustained enough damage from attacks–that reaches or exceeds its HP–is referred to as being “Knocked Out”. For each of the opponent’s “Knocked Out” Pokémon the victor scores 1 Prize Card, although some special card mechanics grant up to 2 or 3 Prize cards in accordance with their higher hierarchy.
Prize cards are primary win conditions, with the possession of six Prize cards being an instantaneous win. Other ways to win are by “Knocking Out” all the Pokémon the opponent has on their bench (i.e. the row behind the Active, fighting Pokémon that houses five additional Pokémon to supplant the active Pokémon if it retreats or is “Knocked Out”) so the opponent has no Pokémon left, or if at the opponent’s turn there are no cards left to draw into their deck.