I made this plugin by request of a friend, and because I didn't have anything to do.

# Features:
- PlaceholderAPI support
- Staffmode
- Freezing (through command or freeze wand in staffmode)
- Open inventory (through command or inventory wand in staffmode)
- Knockback Stick (in staffmode)

# Commands and permissions:
- /staffmode - staff.staffmode
- /freeze - staff.freeze
- /openinv - staff.openinv
- /vanish - /v - staff.vanish

# Staff mode items:
- Disable staffmode item - staff.staffmode
- Freeze wand - staff.freeze.wand
- Inventory wand - staff.openinv.wand
- Knockback Stick - staff.kbstick
- Vanish item - staff.vanish.item