Tern's Calculator was based off of the Vita's of the monsters I had supplied to him at the time. They are rather outdated now since they have been changed since.
On Ixues's page just go to Attack Damage and then go from there. It wont say what monsters you can or cannot kill. But it would give you a very good idea on how much damage you deal.
Also you have to remember, it is really hard to keep that part of a page up-to-date since it can change at any givin time without warning. And/or the vita ranges of the monsters can change as well. It is better to just know what you can kill, what you cant, and how much you can deal to specific monsters. Then check out any calculator page to figure out your attack damage, then roughly guess on how much you did to a monster by adjusting the AC levels.
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