But Itachi, u still saying lots and lots times league league, but...what is this?

Leagues are a weekly fight that happen 3 times per week, if u win u get a lak powder.
in leagues u have 4 division to participate :
1-Begginers : lvl 1-150 (no newbie packs allowed)
2-Advanced : lvl 151-255
3-HardCore : lvl 256-369
4-OP Division : Only for OPs (LOL its a V.I.P. fite, time to cheer for ur beloved OPs)

The main rules are :
1-Not Allowed +10 or above stuff
2-No anct weaps
3-No Mounts
4-No relocate inside of arena

For that rules only the 4rd one is applied to OP Division.