Skilled Grappler

Disabling Practice: 3rd level You learn a number of grappling techniques to subdue your opponents. When you hit a creature grappled by you with an unarmed strike and deal Sneak Attack damage, you may choose to forgo two of your Sneak Attack dice to make the attack a grappling technique. Some of your grappling techniques require your target to make a saving throw to resist the grappling technique's effects. The saving throw DC is calculated as follows:

Grapple Technique save DC = 8 + your proficiency bonus + your Strength modifier

Constrict

You attempt to choke the target into unconsciousness. The target must make a Constitution saving throw or be restrained until the end of your following turn.
If you maintain this technique for 1 minute, the target falls unconscious for 1 hour. Droids and constructs can not be knocked unconscious in this way.

Disarm

You attempt to disarm a weapon or other object the target is holding. The target must make a Strength saving throw. On a failed save, it releases the object. If you have a free hand, you can catch the object. Otherwise, it lands at your feet.

Hip Toss

You attempt to throw your target to the ground. The target must make a Dexterity saving throw. On a failed save, the target is pushed back 5 feet, knocked prone, and stunned until the start of your next turn. This ends the grapple.