Racial Ability, affects ALL checks

[Tilphor]

Greetings,

I'm a new user of Hero labs, and I love it. I'm Savaging the old Kingdoms of Kalamar setting from D&D 3.0, and it's working out great. I have created new races and weapons and other basic Things.

I am currently attempting to Savage the Sahuagin from D&D 3.0, and I've discovered a challenge above my pay grade: Freshwater Sensitivity.

Essentially it is a Racial "Ability" that causes a -2 (my number) to ALL checks, trait, skill, attack, if the creature is submerged in freshwater and fails a Vigor roll.

what would be the most efficient way of tackling this?

Thanks!