Well I have two questions.
1. Can an attack go below 0 damage? Like -5 damage? Or does it just hit 0?
2. If for some reason my opponent plays Rejection while my attack is at 1 damage or below 1 damage, would I be able to use Distractible to negate it?
R Commit: After your opponent plays an enhance ability that reduces the damage of your attack, negate that enhance.