Staggering Strike

Base attack bonus +6, sneak attack ability,

If you hit with a sneak attack, you may choose to forgo a variable number (chosen by you at the time of the strike) of dice of sneak attack damage to deliver a particularly horrifying and disgusting wound. The victim of a staggering strike becomes staggered for a number of rounds equal to one-third the number of dice of damage you choose to forgo. For example, if you could sneak attack for +6d6 damage, you could forgo all that extra damage to stagger the target for 2 rounds.

If you hit with a sneak attack, you may choose to forgo a variable number (chosen by you at the time of the strike) of dice of sneak attack damage to deliver a particularly horrifying and disgusting wound. The victim of a staggering strike becomes staggered for a number of rounds equal to one-third the number of dice of damage you choose to forgo. For example, if you could sneak attack for +6d6 damage, you could forgo all that extra damage to stagger the target for 2 rounds.

You are particularly adept at making cruel and demoralizing sneak attacks.