Stinging Rebound (3.5e Maneuver)

''You fly through the air and slam your sword deep in their chest, legs, pressed on their shoulders. Then you kick back off doing a backflip while your bleeding opponent stumbles backwards and hits the ground.''

Make a jump attack with a DC equal to the target's AC against any creature within one move action to you. You run up and leap on them making an attack and dealing damage, with a +2 bonus on the attack roll. Regardless if you hit or miss with your attack you push yourself off their body and return to your original spot, while the opponent is pushed backwards 5 feet every 2 initiator levels, and must make a Reflex save or fall prone. A successful save negates the prone, but not the movement, or the damage. You do provoke for moving into their space, but get your initiator level to your AC against attacks of opportunity caused by this maneuver. If you fail the jump check you still move and attack, but do not bounce back, do not get the +2 to attack, and do not push the opponent or knock them down.

On a natural 20, you hit with such force they are pushed back 5 feet per initiator level instead, and they are staggered for 1 round. A successful save negates the prone, but not the staggering.