Anti-Invisibility Feat, Spell, Magic Weapon Property

FireLance

Legend
All the talk about how to counter the Improved Invisibilty + Fly tactic in this thread made me think. If invisibility was all that common, surely someone would have come up with a really effective counter to it. Blindsight, Detect Invisibility and Invisibility Purge are limited by range. Faerie Fire and Glitterdust depend on your being able to roughly target your opponent in the first place. So, I came up with the following.

Feat: Seeking Spell [Metamagic]

Benefit: A seeking spell automatically locates concealed, invisible and hidden targets.

If the caster is able to discern his target (i.e. one that has less than 100% concealment), he does not suffer any miss chance arising from concealment.

Otherwise, the closest invisible or hidden creature within line of sight of the caster and within the range of the spell when it is cast becomes the target of the spell. If there are multiple targets equally close, the spell randomly targets one. If there are no eligible targets, the spell is cast, but dissipates without effect.

For spells that require an attack roll, the caster may make the roll normally. The caster does not have to guess the location of the target nor does he suffer any miss chance. For spells that have a point of origin, such as a burst or a spread, the point of origin is centred on the target. For spells whose effects are a line or cone, the spell takes effect in the direction of the target.

A seeking spell uses up a spell slot one level higher than the spell's actual level.

Spell: Seeking

Transmutation
Level: Brd 3, Sor/Wiz 3
Components: V, S
Casting Time: 1 action
Range: Close (25 ft. + 5 ft./2 levels)
Target: One weapon or fifty projectiles (all of which must be in contact with each other at the time of casting)
Duration: 10 minutes/level
Saving Throw: Will negates (harmless, object)
Spell Resistance: Yes (harmless, object)

This spell gives a weapon the ability to attack concealed, invisible or concealed targets accurately.

For the duration of the spell, the closest invisible or hidden creature within line of sight and reach (for a melee weapon) or range (for a ranged weapon) of the weapon becomes its target. When the wielder takes an attack or full attack action, the weapon changes course to attack its target, regardless of the preference of the wielder. If there are multiple targets equally close, the target is randomly selected.

The weapon attacks with all the wielder's normal bonuses to attack and damage. The wielder does not have to guess the location of the target nor does he suffer any miss chance.

If there are no eligible targets, and the wielder attacks an opponent with concealment, he does not suffer any miss chance arising from concealment.

Up to fifty arrows, bolts, or bullets can be affected by this spell. The projectiles must all be of the same type, and they have to be together in one group (such as in the same quiver). Projectiles (but not thrown weapons) lose their transmutation when used.

Magic Weapon Property: Seeking

A seeking weapon has the ability to attack concealed, invisible or concealed targets accurately.

The closest invisible or hidden creature within line of sight and reach (for a melee weapon) or range (for a ranged weapon) of a seeking weapon becomes its target. When the wielder of a seeking weapon takes an attack or full attack action, the weapon changes course to attack its target, regardless of the preference of the wielder. If there are multiple targets equally close, the target is randomly selected.

A seeking weapon attacks with all the wielder's normal bonuses to attack and damage. The wielder does not have to guess the location of the target nor does he suffer any miss chance.

If there are no eligible targets, and the wielder attacks an opponent with concealment, he does not suffer any miss chance arising from concealment.

Bows, crossbows, and slings so enchanted bestow the seeking property upon their ammunition.

Caster Level: 10th; Prerequisites: Craft Magic Arms and Armor, Detect Invisibility or Seeking; Market Price: +1 bonus.

Comments?
 

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I like these.

I like that none of them specifies that the spell targets enemies, making them risky in big fog banks, or when your allies use magic to become invisible as well.

The spell balances nicely against See Invisibility and Faerie Fire and the like. Could it be targetted on natural weapons? I don't think it would raise its power any, as long as it only affects one natural weapon, not a creature's entire arsenal.

The feat brings me a little more concern, not with its existance, but rather it's level adjustment... There's nothing to balance it easily against. While it's obviously more useful than, say, Silent Spell or Still Spell when it comes into play, it's not something that many people will think to prepare ahead of time, unless they know they'll be fighting mages, or they run into invisible foes often. Might be fun to be a mage and use this in combination with Obscuring Mist.

The weapon property will cause so many instances of confusion, being a permanent effect, that it cannot possibly be worth more than a +1 bonus, and so is fine as it is. If it were something one could turn on and off at will, then it would still probably be only a +1, but I'd have to think about it.

Overall, great stuff.
 

I also think these are a cool idea. I think the seeking spell could actually be made 2nd less, to counter invisibility. Since it has the drawback of possibly hitting invisible friends as well- I consider that a balance.
 

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