Empties all of the specified teams. If none are provided clears all of the UHC teams.
-a, --all
Clears all teams, not just UHC ones.
other arguments
Team names to clear.
/clearteams UHC-23 UHC-20
Clears only the teams UHC-23 and UHC-20
/clearteams
Clears all of the UHC teams
/clearteams -a
Clears all of the scoreboard teams
uhc.command.clearteams - allows usage of the command, default OP