a f2P player can get in a range of 4500/5500 cupos in 30 days. If you want to get a lot of power very good ninja frqgs ... do what i do .. 1. moons scrolls give you 66k per week you use 60 to buying 300 keys, in a month would be 1200 ... 2 the events of one another takes approximately 1 month .. save 3600 coupons you use in greate plates event and you will earn 500/700 keys added to the previous 1200 + 600 + (keys that you win throughout the month). for every 1100 keys you use you acquire 1 golden essence .. this is worth 6k / 7k in coupons and apart you will earn 140 keys and roulette items .. the greate plates is the best .. since trembling helps you to get refine so you can complete other events and win cool items ... apart you gain experimental vials and protection so don't get saturated to get the full skills.

https://youtu.be/h3QmSE6NaNg

I am fretoplay too