Use Mine, is better, and simplified you dont need to think a lot. add id range or set arrays.
- script #mvp_drop -1,{
OnNPCKillEvent:
if (getmonsterinfo(killedrid,22)) // if grant exp MOB_MVPEXP, is a MVP.
if (rand(100) < 10) // 10% drop chace.
getitem 7929,1; // Item ID and Ammount
end;
}