Quote Originally Posted by Myrmex View Post
I thought a cleric used its full casting, d8 HD, and heavy armor prof for not dying.
If you're going to be on the front line, you need Con. Casting won't save you in every situation and the things you really don't want to hit you are probably going to hit your AC anyway. And remember, the difference on average between a d4 and a d8 is 2 hp, so Con matters a lot there.