This is just absolute d1ck move come from I don't know maybe Oas or Tencent but really? If you are going to make players pay for more keys to get big rewards then stop making it hard for normal players.
Can you just set the drop rate at 50%? It's fking capped at 10e/day already. Why you have to set it so low? Because you see the amount of people complain about ninja's price is not enough? So you want to add people like me who always enjoy little reward too right?
I was thankful for what you guys have given, never complain about ninja's price because I know ninjas are not something normal players can get everyweek. But this time, you went too far. Stop with your greed * it.