Cost these Magic Items

[Michael Morris]

I suck at costing magic items. Have fun...

Isochron Scepter
This rod has 50 charges and no spellcasting ability when created. You may, as a standard action that provokes an attack of opportunity, cast a spell of 4th level or less that has no material or XP component into the Isochron Scepter. This imprints the spell on the scepter. You can then cast the spell at a charge cost equal to 1 + its level. If you imprint another spell on the specter any prior imprinted spells become charges (hence this item can be recharged).

Craft Wand, Craft Rod, Imbue with Spell Ability? 200,000 - 300,000??

Null Rod
When this rod is turned on it generates a 30' antimagic field which only affects magic items and the spells cast using magic items.

Craft Rod, Antimagic Shell, 100,000?

 

[Dakkareth]

Null Rod
An antimagic shell with a 30' radius would probably be an 8th level spell. The cost would then be 8*15*1800=216'000 (command word activated) for unlimited usage. If we give it three uses per day the price goes down to 129'600. The limitation, that only magic items can be suppressed is an advantage or disadvantage depending on the situation, so I wouldn't adjust the price, which seems in line with the effect to me, any further

 

[Xath]

I agree with Dakkareth on the Null Rod, but I'm not sure even your highest guesstimate on the Isochron Scepter will balance it out. It has the capability to be a staff of any spell of 4th level or lower. I wouldn't even know how to begin to balance that out.

 

[Michael Morris]

Perhaps limit how long the imprint lasts - say 1 round per level of the wielder, to a max of 10 rounds.

 

[CRGreathouse]

Perhaps limit how long the imprint lasts - say 1 round per level of the wielder, to a max of 10 rounds.

With a limitation of spells without material or XP components of 4th level or lower, and with a price of 200,000 gp, I wouldn't limit the imprint duration. Seriously... even opening this up to include spells with material components valued at less than 1 gp wouldn't make this powerful enough to restrict the imprint at that price.

 

[der_kluge]

MM, you need to pick up the Artificer's handbook. You could cost these out with those rules fairly easily.

The latter is easier. I'll do it first using those rules.

It's an unlimited use, command-word activated item which casts anti-magic field.
That in and of itself would be easy, but you've increased the range, and changed some of the diameters of the spell. Let's examine those:

Anti-magic field is 6th level, which requires caster level 11.
Cost would, based on that:
10gp(6+11-1) * 13^2 (13 spell slots for 10 minute duration spell.
160gp*169 = 27,040gp (creation cost).

That's the spell as written. You've both increased the diameter, and increased the functionality. That's a significant improvement, to which I'll add 4 spell slots for each benefit.
That puts our equation at:
160gp (the front half didn't change) * 21^2 = 160*441 = 70,560gp.

Which might seem cheap. But to create this rod, the creator needs to be able to cast 21 6th level spells.
Without significant charisma boosters (need at least something which grants at least one bonus 6th level spell) an 18th level sorcerer can cast this many 6th level spells. Otherwise, they'd have to wait until level 19. So, difficult, but feasible. As you can see, creation cost is only part of the equation with these rules.


Isochron Scepter
Artificer's Handbook rules allow for rechargable wands, which this is. One could treat this is a wand with imbue with spell ability but that's a bit of a stretch. Instead, I would create it with limited wish since it's much more flexible, and specifically allows for this kind of thing.

10gp(7+13-1) = 190gp
spell slots required is based on rechargable multi-charge item. 4 for multi-charge rod, 4 for 50 charges, 4 more for rechargeable. That's 12 7th level spell slots. But you're not getting a rod of limited wish, you're getting something a little less than that. I think you'd be better off just creating a rod of limited wish, so that's where I'm leaving it. It's certainly more flexible that way.
190gp*144 = 27,360gp (creation cost).

Your rod, as written has some weird recharging rules. It would be easier to just say that it's rechargable by placing more limited wish spells into the rod. You can do a ratio of 2:1, or 1:1 or 3:1 or more (your preference) to recharge the wand in this manner. I would also just (for simplicity's sake), do a charge cost of 1:1 for each spell cast.

This requires 12 7th level spells to create, which would take an 18th level sorcerer, or maybe a 20th level wizard. Again, not impossible, just difficult. Of course, the sorcerer would need to be able to cast limited wish.

Hope that helps.

 

[TheYeti1775]

Use Scrolls

Use scrolls for all those extra castings you need during creation, then you do it at the minimum caster level.

 

[Staffan]

MM, you need to pick up the Artificer's handbook. You could cost these out with those rules fairly easily.

I keep hearing about this Artificer's Handbook, but I can't find it in these parts. I wish more companies would release stuff in PDF (at decent prices, of course).

 

[Xath]

I wouldn't mind grabbing a copy myself.

 

[der_kluge]

Use scrolls for all those extra castings you need during creation, then you do it at the minimum caster level.

That's not an option, per the rules.