<counter condition> is not a lunatic mode tag. I think you should be using <custom counter rate>
I do appreciate the suggestion, but I'm not actually seeking to change their counter rate depending on their HP.
Like if a skill used isn't a magical hit, the counter condition isn't met. That's the case I'm trying to find with the HP part, like if the attacker's HP is 0, the condition isn't met (while earlier it was during a multi-hitting damage phase that would make it go down to 0) , while not having to bring their rate down.
I wonder if a variable would solve the issue, regarding whether the enemy is alive or not.