We know you feel unsafe when running out of shields. So the Doggy is here to block the Attacks and protect your Villages!
When other players attack your villages, the awake Doggy has a chance to block the Attack and save your shields for future use.
Please note that the Doggy will firstly has low chance to block the Attacks. Using Pet XP Potions to
level him up will increase this chance.
In order to unlock the Doggy, you need to complete a Card Set that is indicated in the game.