You attempt to tackle a creature after moving at least 10 feet of movement in a straight line towards your target. You make a Strength (Brawn) check contested by the target’s Strength (Brawn) or Dexterity (Acrobatics) check. If you win the contest, both you and the target are both knocked Prone and the creature is grappled. If the creature is larger than you, they have advantage on their skill check roll. You cannot tackle a creature that is two size classes bigger or smaller than you.