No toon over Saint lv2, Lv70 and Lv80 leader cards both fail. Heavens Palace every weekend of playing never one time, not once, pulled a card on climb up. Heaven Tavern rare to pick a card from there, most I can hope for are spirits. I can have gold, purple, or blue mix of cards up to 4 and still pull the white hero. As far as spending gems for a another chance, 90% white hero other 8% will be blue hero. The length of time it will take to gather enough cards to reach angel, I am sure I won't remember how many failed along the way.