Got a couple of questions regarding revival events:
1. How often do they occur in general?
2. Can a single revival event reoccur and if so, how long until it comes up again? An example would be the recent Treacherous Pirates revival. Is that a one time thing or will it happen again in the future?
3. Which type of events have units in the TP for revival crystals?
4. Is the event skill up fairy unit specific or can we use her on any revival event unit?
And last question: What are platinum tickets used for? I saw them in the legendary and super legendary stamp cards.