Crafting Question

[keeper2161]

Is there any way for me to craft the spell Cloud of Knives into a item whether that be a ring or other wise? Like on command it last how ever long then disappears and there is no limit to how many times I activate it or like 5/day.

Conjuration
Level: Cleric 2, Sorcerer 2, Wizard 2,
Components: V, S, M,
Casting Time: 1 standard action
Range: Personal
Target: You
Duration: 1 round/level

You conjure a cloud of sharp knives around you.
The knives float in the air around your upper body, pointing in the direction you look.
Each round as a free action at the beginning of your turn, you can release one of these knives at any target within 30 feet that you can see.
This is a ranged attack that uses an attack bonus equal to your caster level + your key ability modifier.
Each successful hit deals 1d6 points of damage +1 per three caster levels (maximum +5) and threatens a critical hit on a roll of 19-20.
Damage reduction applies to knife attacks from this spell.
The knives are treated as magic for the purpose of overcoming damage reduction.
Material Component: A knife.
Optional Material Component:Using a silvered dagger (22 gp) in the casting of this spell allows the knives to overcome damage reduction as if they were both magic and silver, but the knives deal 1 less point of damage.

[Phelix-Mu]

A wand is obviously the go-to for spell storage, but the charges make it expensive over time (although 50 is actually a whole bunch of castings, much more than it seems like).

An eternal wand could store cloud of knives, though it would only be usable 2/day. I'd suggest, for ease of use, just buy two or three wands of cloud of knives at whatever CL you prefer (though you might run into a RAW debate about the CL of eternal wands).

Eternal wands are discussed in Magic Items Compendium. Any other custom item is likely to be more expensive.

[keeper2161]

Alright thank you.

[MilesTiden]

A continuous or use activated item of the spell would cost 48100 GP. 2 * 3 * 2000 * 4 = 48000, plus 100 for 50 * 2 (material component).

[Phelix-Mu]

A continuous or use activated item of the spell would cost 48100 GP. 2 * 3 * 2000 * 4 = 48000, plus 100 for 50 * 2 (material component).

And thus a handful of eternal wands would likely be much cheaper, though that might vary at high CL.

A thoughtful DM might even allow you to have these wands take unusual appearance if you are thinking of them as part of your character concept/image, since, aside from activation and draw action times, there isn't much about wand appearance that has much to do with their function.