blargney the second said:You know that casting defensively doesn't do squat against readied actions, right?![]()
I was just about to say the same thing. A +30 concentration check doesn't do anything against a barbarian readying a greataxe at your skull if you cast a spell. So you take 50 points of damage; good luck with the DC 60 save.

Of course, a level 28 cleric is likely to have an AC through the roof too, so it's not as easy as it sounds. But +30 to a skill isn't good but not great, especially by level 28.