So I was thinking, what if players could hex or curse other players in game? As to not ruin the PvE aspect the hexes would be purely cosmetic. For example, hex someone into hearing chicken sounds every few seconds for an hour (dementia hex), hex someone into randomly walking a few steps in a random direction (possessed or dizzy hex), hex someone into hearing monsters around them but not being able to see them (paranoia hex), hex someone into seeing fake players or mobs run around them (idek anymore what this could be called). There are countless ideas and I think it could be a fun way to prank friends for a short amount of time. Maybe have each hex have a certain antidote that can be crafted if you dont want to wait until it wears off. Have the hexes be harmless, just annoying.