Do Strengths mean anything to Ninjas?

[Themis]

If you have aggro, you can parry an extra 1 or 2 percent. >_>

So, no.

Actually, DEX affects parry chance. STR affects how much damage you'll Parry.

But like DEX, you need a lot of STR to really make it worthwhile, and you wouldn't go about melding STR to your gear just for that.