Melee mob hack makes all enemy only use melee attack, no long range attack. But it's very buggy.
Don't use EXP hack with melee mob hack. You don't want to use melee mob, because it makes a lot less enemy appreance, hence less XP.
You can set XP up tp 9999. But don't tick melee mob and articaft god at the same time.
Just use XP and 2-3 hit kill or XP and artifact god.
Artifact god, sometime it works sometime don't. I don't know why.