Welcome to the gambling industry.
Frankly speaking I cant say something else except "why pvp lottery"? This type of lottery game has so low interest in this crypto gambling industry.
Although you have a new concept where players are able to play with various coins as well as winning it, but the main problem of this kind of game is still hard to solve.
You will need to work so hard to attract people. I have seen many failed lottery game in the last few years here, so you need to learn from other's experience on how to survive with this kind of game.