Should be quick and easy to add.
On the spawn platform
/effect
/home
*More to add probably*
In actually KitPvP arena
/effect
/tc (since it is serverwide)
*More to add Probably*
Terrarium Platform
Allow all commands on the platform instead of having to run up the stairs.
Also is Terrarium
/bal (to see how much you have after Kill streak)
/seen (to see if a player is still online
/effect (to change your effect without having to come out)