How to get an Ilona universal card?

Ilona Universal Card was won by a lottery. Log in to the game for 7 consecutive days and get a lottery card in the warehouse interface. Enter the new year lottery interface and use the lottery card to extract the card slot treasure chest. There is a 30% chance that the card slot treasure chest will drop the Ilona Universal Card. Repeat the above steps until you put down the Ilona universal card.