A player can accomplish this by selecting a card from the draw or discard pile or by discarding a card that is no longer appropriate for their current plan of play. Setting Uallgamesp Sequences and Sets. A group of three or four cards of the same rank but different suits is considered a valid set; a group of three or more consecutive cards of the same suit is considered a valid sequence. A player may lay their cards on the table and declare their hand after they have made any sets or sequences that are considered legitimate.