Occult Slayer

[Patryn of Elvenshae]

If edhel described them correctly, they don't sound overpowered. Why do you say that?

-Gak Toid

These don't sound overpowered to you?

Mageslayer - A caster is unable to cast defensively if you threaten him (i.e. he still provokes AoO even if casts def) but he knows it. Not so useful but you need it for

The spellcaster you threaten not only cannot prevent you from getting an AoO by casting defensively, but he can't cast defensively at all. So, even though you're the only one specially trained in fighting wizards and other spellcasters, Bobby the Fighter standing with you gets free attacks as well.

Moreover, you don't apply a penalty to casting defensively, oh no. You deny it entirely. So, a 40th-level Archwizard is just as hosed as a 1st-level Apprentice. That doesn't sound right to me.

Pierce Magical Protection (or something like that) - your attacks (melee?) ignore the AC bonus from spells and if you hit, you dispel the spells in question.

You not only get to ignore the Mage Armor, Shield, and Barkskin spells in place upon me, but if you hit they are automatically dispelled? As in, these spells can resist the targeted dispel check from a determined Archmage, but some Fighter whacks me once with his knife and they fold?

That's moronic.

Pierce Magical Concealment (?) - you ignore all effects that give concealment or miss chance and dispel them too if you hit, IIRC. Imho, this feat doesn't rock as much the second one.

Likewise.

 

[Joker]

I agree that the mage-slayer feats are very powerful and that the cumulative caster level penalty doesn't really compensate for it (as they can be easily avoided by not taking spellcasting classes. This does, however, limit his choices.)

But they're cool. As in frigidly so. Ice cold. Snazzy. Spiffy. They got pesazz (sp?).

Regardless, with mage-slayer the caster knows he can't cast defensively so he can always 5ft step his way out of harm (assuming no reach).

I think the Pierce Magical Protection should at least allow an AoO and force the attacker to make a dispel check equal to his character level (ignoring the caster level penalty). It's already a standard action, right?
Alternatively, you can just make it a full-round action that provokes AoO (but doesn't require a caster level check).
Maybe he can only dispel one spell per strike. Just some random thoughts on balancing this feat.

I think the Pierce Magical Concealment spell is on par with Improved Precise Shot. Much better because of the reduced prerequisites but worse because it only ignores miss chances from magical sources. Granted, there aren't alot of non-magical sources which cause miss chances but there are a lot of situations where mundane cover comes up, at least IME. YMMV.