Artifact help

[Garion Beckett]

hey guys. i have a question. for one of my players i want to build an unorthodox spellbook. they want it to be a bracer where they can store their spells magically. eventually my players will gain mythic and this item will be an artifact. So i want to build this item so i know how much character wealth to take away from the player.

I am thinking a bracer made of ??? and i want it to be able to store spells as a spellbook, and if used with say a bracer of armor the bonus will work.

Does that make sense?

[OmniMage]

The Blessed Book is the closest magic item that does what you want. It has 1000 pages for spells, and it costs nothing to add spells to the book (though the book itself is expensive). If you divide the price of the book by the number of pages, it comes to 12.5 gp per page.

Blessed Book

I don't get why you want your spell book to be a bracer (or pair of). With the spell Secluded Grimoire, you can keep your spellbook plenty safe.

Secluded Grimoire

If you want to be completely secure with the spells you know, then you should pick the mythic power Perfect Preparation to know all your spells without needing a spellbook or familiar.

Archmage Path Abilities

[Pizza Lord]

Artifacts shouldn't just be objects. They need to be something that's pretty much fully fleshed out like the best of NPC and stories. Also, most artifacts are powerful and aren't made for mortals and they will cause great repercussions up to transforming those using them. Even so-called good artifacts have these effects just based on their power and the fact that most wielders aren't the great and mighty heroes that they were made for or who created them.

If you're just wanting a magic item that can be done, but if you're wanting an artifact that needs more details. You say you want it to be an artifact, but I can't tell if you meant that you want it to become one as the player becomes mythic and so we should start it out as a lowly typical item (like a Weapon of Legacy that builds in power with its wielder) or if it's some artifact wielded by a past hero and now the PC has it (and we can still limit its power to the wielder, making it so they aren't casting wishes willy-nilly, or at least not without world-shaking consequences).

Either way, it should definitely have some major drawbacks that most PCs will need to deal with (or at least their fellow party members).

So far you've only mentioned that you want it to be a bracer (possibly with the property of bracers of armor) and that it holds spell formula and writing allowing it to function as a spellbook. This is no great problem unless you're getting into book of infinite spells territory where any reader can cast the spells regardless of their class (with varying levels of success).

If that's all you want just go with bracers of armor and say that the bracer just lights up with glowing runes for the spells 'written' onto it. Then you have to determine what spells it does contain and whether the user has to write them in like any other spell known onto the bracer and what that entails; typically the same cost as a spellbook usually unless that's another property of the bracer to make it different.

So if you just want it to become some item of legend, any abilities or themes are going to ultimately depend on the PC and what they do during their rise to epic and mythic legend.

Otherwise, we kind of need more to go on for what you want it to do and what things might have happened in the past that lead to its creation or at least what its original creator or wielder was or did, since that's going to flavor the whole aspect of its powers and effects. The same basic item gets a whole different feeling whether the creator was an angel or a demon, or a wizard or a sorcerer, or an elf or a human or a gnome or even a kobold.
We can all picture of a magical bracer in our head, but it can change looks and feeling as soon as we say, "And it was created by a [demon/angel/frost giant/cow licking a magical saltblock]."

[Diego Rossi]

A possible idea is to make a small book pendant you affix to any bracer the wizard wear, be it magical or not. It flies up, hoover, and enlarge to become readable. After learning a new spell the wizard can add it to the book by consuming the right cost of reagents (crushed gems or somesuch) to pay for the cost of writing the spells. Essentially a Blessed book reskinned and with some power with little or no game effect.

If you want to make it a legendary item it is more complicated, but I would require the item to be part of the tale of the character, something that grows and change from what he does, not simply something he gets because he has spent a feat or mythic ability in it. Spending the feat or ability is what finalizes the item, not what creates it.

[AwesomenessDog]

A simple glove of storing could probably already be flavored to work how the OP wishes. A normal spell book weighs 3lb for every 100 pages, maybe you could argue that 1lb of that is the binding weight and the 2lb are each 100 pages, letting you make a book that is 950 pages long at 19lb+1lb binding to fit in the glove of storing. (Maybe a 950 page book is getting to the point of not being holdable in one hand, but that's a different point, and even then you could combine the blessed book with the glove of storing.)

[Azothath]

mechanically and effectively putting a regular spellbook with Arcane Mark in a Handy Haversack keeps it plenty safe. Add a Fortifying Stone to the backpack and it's very hard to destroy. Around 10th level the wizard usually transitions to a Blessed Book. So that's the simple practical in game solution.

[Azothath]

What you are proposing is a cool ancestral item that's modified.
you could review Crystal of the Ebon Flame, Orb of Arcane Research. Both are slotless and don't offer a defense bonus like a bracer would.

You could go with a modified Migrus Locker where the cat can also store 1000 spell levels like a blessed book, with an INT & EGO score.