Scarce NFTs

In order to add suspense to the game, promote entertainment, and give users the motivation to add such attributes, there is a 5% probability that the background will have dynamic effects of sunny and thunderstorms when the basic card is cast. This type of NFT is used in the game. It is possible to respond to the results of the entire game. Among them, the attributes of sunny days and thunderstorm days are divided into 10 levels.