Punish Them

Flexible melee attack

You can use this maneuver only when you make an opportunity attack.

Any hit with a natural 16+

The target is dazed until the end of its turn.

Adventurer Feat: 

If the target was moving, it stops moving and loses the rest of its move action.

Champion Feat: 

The dazed effect is now save ends.

Epic Feat: 

The target is now weakened (save ends) instead of dazed.