Q: How to be invisible for mobs?

Hello. Im playing at RF Reactoir (its private 2.2.3 server)

I saw player who was "invisible" for mobs.. he only kills them and they dont aggro on him.. How to do it? tyvm :)

fly hack po tawag sa nakita mo . ,

i want only to be "invisible" for mobs... for players i want to be visible :D

here we go.
1.do the fly hack and reach the max height for example on elan
201
17660
then dont move change 17660 to 17450 now you got the invi for other player

wouldnt it be better to replicate the trapper stealth skill?

good tips though guys!