You have advantage on saves and contests of skill to avoid being tripped or knocked prone.

Standing up from being prone only costs you 5 ft. of movement.
(You cannot stand up from prone if you are immobilized.)

You are practiced at getting around enemies, flipping over them, and sliding between their legs.
You have advantage on tests of skill to tumble.

Tumble:
You may try to move through the space(s) occupied by an adjacent enemy as if they were unoccupied by trying a contest of Tumbling opposed by the enemy’s test of Strength.

Tumble = d20 + Health + Agility or Roguery

If you win, you may pass through the enemy unimpeded.
If you lose, you trip and fall prone.
You only get one attempt to tumble past the same enemy on each of your turns.

When you disengage as an action, you can also move up to 5 ft.

When you attack an enemy with a melee weapon, you disengage from that enemy
(you are not engaged by them and do not provoke attacks of opportunity from that enemy for the rest of the turn).