According to the game description of Cookie Dot Com the dragon's skill should be chosen as Dragon's Descent, which increases the economy and combat power by using the four dragon's eyes beside you to energize the dragon's eyeballs every so often and start flying.

Cookie Dot Dot Fun is a cookie-making game, in order to make more cookies, the player can recruit all kinds of cookie makers, such as kindly grandmothers, peasants and so on, it is a very interesting casual stress relief game.