Elder-Basilisk
First Post
Fenes has it right. If you must take something, take skill focus concentration. Otherwise, keep your concentration skill maxed and you won't have troubles casting defensively after a few levels.
Poltergeist said:I think combat casting is essential for healing classes...they have no real option about where to cast their spells. If they are going to heal a fallen comrade, they may have to do so adjacent to people who will get the attack of opportunity.
For non-healing classes, I think you can get by with out it. For the most part, your goal is to remain a good distance away from your foes and frequently you can 5 foot step to avoid the AoO if you need to cast spells up close.