Each turn you draw a card (1–10) from the shared deck. Then you may play one gold side card, then Stand (lock your total) or End turn. Over 20 loses the set. Nine cards at 20 or under wins it outright. Higher total wins; ties score nothing.
Side cards: +N / −N change your total. ±N lets you pick the sign. Mirror copies the opponent’s last card value. Burn removes the opponent’s last card. Wild is any value 1–10 you choose. Double repeats your own last card’s value.