At 4th level, you gain access to the 1st Level form of the Ottan sign.
You wave your hand in the face of a single creature you can see within 15 ft. range and speak a one-word command. The target must succeed on a Wisdom saving throw or follow the command on its next turn.
The ability has no effect if the target is a construct or undead, if it doesn't understand your language, or if your command is directly harmful to it. If the target can't follow your command, the effect ends.
At 8th level, you gain access to the 2nd Level form of the Ottan sign.
All above effects remain, with the following changes:
The command may no consist of a short phrase instead of a single word.
At 12th level, if you choose to specialize in the Ottan sign, you gain access to the 3rd Level form of the Ottan sign.
If the save is failed, the command must now be followed for the next two turns, or until the command has been met.
At 16th level, if you choose to continue your specialization, you gain access to the 4th Level form of the Ottan sign.
You may now target two creatures with this ability.
At 19th level, if you devote all of your specialization into the Ottan sign, you gain access to the 5th Level form of the Ottan sign.
If your command is completed before the end of the sign's duration, any Charisma (Persuasion) or (Deception) checks made to convince the target(s) of further action, have advantage.