
Oppions on what I will call a Skill check "call"
so right now someone calls sleep, and you call resist sleep.
How about a skill check call like Fear 10
If your resist fear number is less than the number called then you are feared, but if more than you are not feared. This would be a passive skill.
You could even get a little creative and have 3 outcomes less than, more than, or tied.
You could go another way too. Half or less the number called, greater than or more than the number called, and in the middle.
Basically, You are afraid, you are really afraid, you are pissed and get some adrenealin bennift to damage against the person you feared you.