i think your Cortosis Blade should read like so (Whenever this character rolls 16 or better on a save when using parry against an enemy with a lightsaber, that enemy gets -20 Damage for the rest of the skirmish). other than that looks pretty sweet and on par with the mando jedi hunter.
@CHS, that's just Cortosis Gauntlet 16 (v-set Roan Fel, True Emperor) but for Parry. Save 16 on such a persistent effect seems too low for a 25pt character. @jak - this dude could murder or neuter the sh*t out of a lot of pieces. I might suggest Double instead of Twin.
Not sure how I feel about cortosis blade, seems pretty darn easy to trigger. I would make it that this guy has to roll an 18 or higher on his parry to shut down a Lightsaber. Similar to imperial knights