Granted, but the ability comes and goes. This does not stop, however, a group of devoted followers from flocking to you once news of your power gets out. And it equally doesn't help naysayers who continue to believe that your power is fake. Your supporters feel so strongly about you and your divine ability that they easily take offense to such claims and fights between people with opposing opinions break out at the drop of a hat. Both sides take it to the extreme, with one claiming you're a con artist at best and a cult leader at worst, and the other defending you so vehemently that they start both non-literal, and if those fail, literal witchhunts against outspoken nonbelievers. Everything comes to a head one day in a huge riot which finds you and your followers pinned inside your home, the police surrounding the house. This happens to take place during one of your dry periods, however, and when you fail to prove that your power is for real your own people turn in anger and fear, murdering you.
I wish, I wish I didn't kill that fish.