Pounce

You rush toward a target like a pouncing cat and possibly knock it down.

Benefit: If you move at least 30 feet straight toward a creature and then hit it with your unarmed attack on the same turn, that target must succeed on a Strength saving throw. The DC is equal to 8 + your proficiency bonus + your Strength modifier. On a failed save, the target is knocked prone. If the target is prone, you can make one melee weapon attack against it as a bonus action.

Once you use this feature, you cannot use it again until you finish a short or long rest.