Support, I only leave crumbs behind at the moment, maybe if I have trails people won't notice so much :p
We should also have flying, disguises, more clothing, death cries, etc. Flying is just flying. Disguises let you shift or change into a mob that you have access to according to your rank. More clothing is self explanatory. Death cries would be triggered/activated when you teleport to a gamemode, if you fall down, or if you change a setting in your lobby gadgets, like activating a gadget, going into disguise, etc.
I would like to add something. To help the server with not going against the EULA, default could like have 1 particle. idk lol Support