The activity entrance is in the QQ game center, which can be seen directly.
The activities in QQ area are basically changing every year, and this year is the way to transfer cards. Generally speaking, there are many legends that skin can be transferred to everyone, but it does not mean that transferring cards is equivalent to receiving skin, just that the probability of obtaining it may be low.
At present, the activities in QQ area have started, and many players have collected their cards and are waiting for the lottery day. Therefore, in contrast, although the activities in QQ area are relatively fast, the probability is high, and we won't know until the results come out.