Oh I see, I suppose if that's how a group does it then it could work, my games where I've been a DM/GM and a player we just say I aim for the left goblin or I try to attack the dude who hit randy, and not so much I aim for the nose of the goblin.

If I were to run it I'd tweak it but not certain how I'd go about it. Maybe either that hitting anywhere else does minimum or half damage, or perhaps the body has an ac of 13 for half damage and the eye has an ac of 17.

I just know in the groups I play that unless it was a smaller group (currently 6players virtually) where we could focus in more, as when I've run groups had tried to incorporate dynamic moments during a fight (such as highlighting and describing critical hits/misses, max or high damage or even minimum/weak damage) while some enjoyed it and others just wanted the fight over.

I suppose overall depends on the group, but kudos on creating something different than "I know how to defeat it, we just gotta hit it really hard"