You can turn over additional luck cards: 0 time
You can turn over the lucky card for free: 0 time
During this event, players can get a free chance to turn over a card every day once they signed in, and you can only use this chance in the same day. Players add per 300 gold between Dec 21st ~ Dec 25th can get a free opportunity to select a card. Those opportunities can be used between Dec 21st ~ Dec 26th, and one player can only select 10 cards at maximum. During the event, all the card choosing opportunities can stack up and there is no limit.