the Lorax said:
No, not all all. I do not advocate a suprise nature to the feat, the caster would still be aware that casting defensively would not function against the possessor of the feat, just that other people/monsters/whatever who also threaten the caster would not get any direct benefit.
Right. Exactly. Lorax nailed it, Corsair.
The whole idea is that the possessor of the feat still gets their AoO, whether or not you cast defensively.
As it stands now with Mage Slayer, the
caster's action is impossible. Not "you can do it, but I'm hip to your tricks", but rather "you just cannot do it within my range".
That (Mage Slayer) version benefits people who arn't the possessor of the feat, which is part of the problem.
I'm a wizard, and I'm threatened by 3 guys, one in front, one left, one right. One of them has Mage Slayer. Doesn't matter which. Because I can't cast defensively at all, that means all 3 of those guys gets an AoO on me unless I move.
If instead, with the Spellcasting Harrier tweak, the situation would be that I can still cast defensively as normal - the one guy that has the feat would be able to pop off an AoO as if I hadn't cast defensively at all, but the other two featless guys would denied their AoOs as they should be.