A player's Villain deck is the deck of 30 cards that sits to the left of their Board, colored with that Villain's color. All cards in a player's hand that they can play are drawn from their Villain deck, either at the end of their turn, or due to some card's Ability. Each Villain's deck is different, customized for their Board and win condition, and part of learning to play a Villain is learning the cards in their deck. There are typically 1, 2 or 3 copies of each card in a Villain deck, though there are a few exceptions.
When Villain cards are discarded, they are put into the Villain discard pile (usually referred to as just that player's "discard pile"). When there are not enough cards in a player's Villain deck to do something (drawing, revealing, or looking at cards), the discard pile is shuffled to form a new deck.
Gallery of Villain deck card backs
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