Question on maximizing Item Drop

Help, I got 50 % item drop on MH,CHEST,CAP,RING
but somehow it only caps at 250%.HELP ME T_T
Teach me please

Have one epiphany item

On your gear

Use Hirling.

There is two ways:
If you’re solo: Use epiphany (5). It can be found at legendex.
If you have another char: Take it up as hireling.

@off: Suggestive name, LOL