PT is similar to a loyalty card, used to increase the lower limit of the chests, and it can’t be used in battle.
Guaranteed chests above the diamond rank, the rewards will not become as bad as bronze and silver.
When you spend a lot of money and consume 3 hours a day, the chest only gives you Common cards and potions, the game experience is extremely poor.
Since it’s all Common card and potions, it’s better to register multiple accounts, because it can effectively avoid the problem of probability. Promoting the rank turns into a punishment.