Board Thread:Game Discussion/@comment-24465722-20140208121342/@comment-11107497-20140208131943

Mobage quietly gave away a gift of either 250 mobacoin or half a skywarp. What you're seeing is probably those skywarps. :)

Drop rates can be sometimes viewed in game, hidden away in difficult to locate places. What I have found listed is:

(R4) super rare 1.05%

(R5) ultra rare 0.05%

(R6) epic rare 0.01%