Boots of the Jaguar

These boots allow you to move with a burst of
speed. When you move on your turn in combat,
you can double your speed until the end of the
turn. Once you use this trait, you cannot use it
again until you move 0 feet on one of your turns.
Pounce. When you use this burst of speed you
may use a bonus action to hurl yourself at a
creature. If it is Large or smaller, that target must succeed on a DC 13 Strength saving throw or be knocked prone.