Ok, this is the bug to farm pvps and it works ONLY in l2mafia stucksubs.
REQUIMENTS: U Need 2 clans, which have war against each other.
1) u need 2 or 3 ppl
2) u go to bandit stronghold which is above ivory tower.
3) u need to have one fighter, so u can destroy doors, by simply stunning the other dude, and targeting door.
4) when u get in there is a buffer, maybe some ppl too, u have to kill them if they're there.
5) Then the bot which is in the enemy clan press heal from buffer, And u kill him again.
6) if ur fast enough u can make over 2-3k pvp in 10 minutes.
**UPDATED**
U can also go under elven village and /target buffer with bot, use 5,6 again.
Suggestion: U can use it to bug other's clans clan points too.
Q: Why should i do this?
A: U can change ur colour name like this
Q: Are there any other ways?
A: There is 1 more way, which i will post when i learn it, So soon i will edit this topic
Q: What if an admin arrests (bans) me?
A: admins log 1time per month, so u got nothing to fear, just if u get killed by other ppl
Q: Credits for this bug?
A: L2mafia community (for finding this) and me :D