how good is this item

[libermortis]

how good is this item what would the price be?

its a mask gives +2 to spell dc untyped bonus, and you immune to all gass spells, and it has permanet Nsytrals magical aura cl 17

 

[Aluvial]

I don't think it is too much to have the gas and the Nystul's aura on it.

I'm curious why you would want Nystul's aura on it if it is already a magical item?

The +2 DC for spells seems out of place for a face slot. Head yes, face, maybe. I would also allow it in a ring or even a robe or maybe even a cloak.

I'm not sure how to price this.

Aluvial

 

[libermortis]

the Nystul's aura makes it apper as a mudane item not a magical one.

 

[Noctos]

i would say fair, it;s only use is protection from something that won't happen every day or even week.

 

[Dross]

i would say fair, it;s only use is protection from something that won't happen every day or even week.

Actually the +2 to the DC of any spell casts makes it usable pretty much all the time (assuming a caster wearing it).

 

[Dross]

How I'd work it is (just be warned that creating items like this is more art than science):

The +2 to the DC (untyped) is the biggie here. Of hand I'm not aware of anything that directly boosts the DC of spells.

"Save bonus: other" has 2000 x bonus squared. I wouldn't go cheaper than this and am likely to double it. So, say 16,000. I'd also add the +50% for not being in the correct body slot (no way is it vision related), so cost = 24,000gp

Immunity to all gas spells (any gas spells that are beneficial??).
Closest thing handy is Necklace of Adaption at 9000gp. I might drop that cost to 6000-8000 depending on how often naturally occurring poisonous gases appear but let's leave as is for now. I would definitely say that a mask is not the appropriate body slot for this aspect, so +50% = 13,500. Being an additional ability , +50% = 13,500gp x 1.5 = 20,250gp

NMA: continuous ((spell lvl x caster level x 2000)/duration or a day)+50% (new ability) which makes: (1 x 1 x 2000)/2 +50% = 1500
I don't really feel body slot affinity works here so I'll leave it be.

So total $$: 41,750gp
+2 DC: 24,000
Gas Spell Immunity: 20,250
NMA: 1500

Depending on things I might round to 40,000, 41,000 or 42,000 gp.

There are a couple of options for the mask to be made cheaper but that can be decided between you and your DM.

 

[steenan]

I don't know any established way of pricing it, but +2 unnamed bonus to spell DC (for all spells you cast, if I understand correctly) is very powerful. About 60-70k gp, IMO. Could be much less if it was limited to, let's say, only spells up to level 3.

Immunity to gas spells is nice, but not overly powerful. Necklace of adaptation, with similar effect, is 9k, I think. Times 1.5, I think, because we are stacking different effects on the same slot.

Magic aura so that the mask seems mundane is a cosmetic effect. If the mask was something cheaper, or if it had some disguise-type powers, I'd count 2k for hiding the aura, but at 80k price level, this I'd give it as a free bonus.

 

[Sekhmet]

I'm fairly certain he meant GAZE spells, not GAS spells, something a mundane blindfold can render you immune to.

I'd put the cost around 8k, based on the usefulness of the item itself (not the flawed system presented in the DMG).

If this item takes up the eye slot that Goggles, Monocles, etc.. do instead of the head slot that Heabands of Intellect do, the price will go up dramatically, though.
The prices stated so far in this thread make this item completely useless to any Int based caster if it takes up the Head slot (no Headbands of Int = not worth it).

 

[Empirate]

8,000 gp for a +2 save DC increase on ALL spells? You must be kidding me, that one goes straight to Bunko's! A must have for all casters, ever. Do you know how hard it is to get your save DCs up to comptetitive numbers from the mid levels on?
Also, the slot thing: "completely useless" might be overstating it a bit, considering that Headbands of Intellect can be put in other slots, too (albeit at an upcharge).

BTW, I'd like to see you be effective while rendering yourself "immune" to gaze attacks with a mundane blindfold... this item is intended for casters (spell save DC increase = dead giveaway), so not being able to see is a pretty big deal. I'd take a magic item to protect me from gaze attacks without rendering me blind over a mundane blindfold any day of the week. I'm pretty sure that isn't what the OP was talking about, though.


My take on pricing:
+2 untyped to save DCs is roughly equivalent to a +4 ability score increase. Increasing your casting ability score by 4 will increase save DCs by 2, and give other benefits, like bonus spell slots, skillpoints in the case of Int, Will save bonus in the case of Wis, etc. +2 untyped to save DCs is obviously not as universally useful, BUT for its intended purpose it stacks with other ability score increases you might get (stackable ability score increases are hard to come by). So, in the case of casters, roughly equivalent. So I'd put this power alone at 16,000 gp.

Necklace of Adaptation not only protects you from ALL gases (not only gas spells), but also lets you breathe underwater. So I'd halve the price, for another 4,500 gp, then multiply by 1.5 (for additional effect on same item), for 6,750 gp.

Nystul's making the whole item seem nonmagical isn't that big of a deal. Probably just rounding up the price to the next full thousand will be enough. It's not as if we're dealing with a magical assassin's weapon, which might benefit from the concealment of its magical aura.

So all in all, I'm looking at a 23,000 gp item for its powers alone. Personally, I hate the "this can only go to that slot" rule and tend to ignore it, but feel free to charge an extra 11,500 gp for "wrong" slot. I'm not entirely sure where an item such as this would go, though. A mask seems useful in protecting you from gases - but the save DC thing is the item's main power in my book.