ANOTHER Hexblade Question

[DungeonmasterCal]

Can the feat Ability Focus be used in conjunction with the Hexblade's Curse ability? It's a supernatural ability.

Edit:

I don't have my copy of CW handy. Can anyone tell me the save breakdown of the Hexblade's Curse at 1st level, as well as starting money and anything else at first level?

Thanks!

 

[shilsen]

IDHMBIFOM, but I believe Ability Focus should apply to it.

 

[DungeonmasterCal]

Thanks!