Definitive Solution against mass use of Macros (Bot Players)

Hello everyone, 

Some servers are suffering from mass use of macro inside the game, also know as Bot players. I think my server have has about 80% bots, cause they are online 24h per day. Don´t misunderstand they are 80% of players, no. Honest players are the most yet, but they don´t play so much.

So, here is my solution (How it works):

Public arenas will demand a new item that allows a player to enter. Lets call it "Arena Key" for a while. Every time you enter public arenas, you pay one unit. 

Ways to get:
You may get the "Arena Key" only killing Orc bosses overlords, what means you only get one per map. Also, that means a normal player will get 8 keys per day or 56 keys per week at most. That also means that and amount of 56k at max will be get from them.

Variations:
- Guild tradeable item: Players could increase even more keys, increase 30 keys per day or 210 keys per week. This is wrong IMHO.
- Guild non tradeable item: players cannot trade this item inside guild, which means dedicated players are the only with more points. 

- 2 tickets per day, guild tradeable item: Encouraging not just the daily login, but the farm freedom. Maybe even more pleaseable. 

Benefits:
- Public arenas are still plentiful for honest players, but not abundant enough to havoc the game. 
- Game will not need a report system, which are frail to see cheaters, give a lot of work to developers and have high maintenance costs.

- Game will become even more hard since to get keys, you need to spend all your stamina hunting orcs in all map to make it possible to farm in the next 12h. This means it will decrease the speed you hunt inscriptions. 
- System avoid systems with with low response, low response speed and low accuracy, also they don´t need to spend time reporting players like some systems demand. 

Benefits to Developers: 
- Game will not need a report system, which are frail to see cheaters, give a lot of work to developers and have high maintenance costs.
- Since public arenas are hard to do, gems will be even more important. What do players prefer? Compete/Challenge rich players and cheat players or ONLY rich players? I don´t know you but I want to kill cheat methods. 

IMO (In my opinion):
This is the most simple and most strong attack against Bots. I think this may reduce the amount of Bots in my server in about 90% while still saving a good amount of public matchs for hardcore players. 
Other solutions like reporting players will only reduce 20% IMO, also, it has high maintenance cost, low response speed, low accuracy and some developers simply don´t ban rich players cause they are corrupt. 

Sorry if anyone don´t like it. My intentions are truly good.