mob.wz and PYPQ

[Ashburn_Tan]

In PYPQ, its safe to use godmode and edit the mob.wz for invisible yeti and even freeze their movements. just thinking whether it is possible to change the MP of the mobs in the PYPQ so that when mages use mp eater successfully, they can have potless PQ.
p.s. can anyone briefly explain to me wad is client sided and server sided? thx