To initiate a grapple, a creature must have a free hand and the target must be no more than one size category larger than the grappler. The grappler makes a special attack using the Attack action, rolling an Athletics check contested by the target's Athletics or Acrobatics check (the target chooses which to use). Grappling consumes one attack from the Attack action. Once a creature is grappled, the grappler can move them at half their own speed.