Hearthstone legend pack of five orange pictures

There are five orange pictures in a pack of Hearthstone, including Inara Thunderbreaker, Bone Golem, Credan the Breaker, Star Student Strina, and Kain Sunfury.According to official data, an average of 20 Hearthstone card packs can obtain one legendary quality card. Therefore, the probability of five orange cards being revealed in the same card pack is equivalent to 0.01 raised to the 5th power.