The game is extremely easy without the potion, adding it in is a complete waste of time for everyone involved, the Devs, the players, the mods, the non-players, your mother, your grandmother, everyone.
LITERALLY. POINTLESS.
So no, it shouldn't be added.
Why the fuck do you need to change the tag every six hours. My team has had the same tag for like 3 god damn years, why would you ever need to change your tag unless an old tag had just become available. Which you wouldn't know unless either
A.) Teams announced when they disbanded
Or
B.) There was a "Team Database" you could check to see what tags are taken
A being highly unlikely to happen and B being too much work to make so why would the devs even bother.