So far as I can tell, to summarize, the house rules change two things about item creation:
- An item creation feat's prerequisite is não caster level but, instead, effective character level equal to the feat's caster level. For instance, the feat Brew Potion has a prerequisite não of caster level 3 but of ECL 3.
- Spells that are prerequisites for creating a magic item need não be supplied every day of a magic item's creation, but, instead, only uma vez and at the end of the magic item's creation. For example, a creature that wants to brew a poção de pressa [trans] (PH 239) (3rd-level spell at caster level 20) (3,000 gp; 0.1 lbs.) need not supply the pressa soletrar três times (once per day for each day necessary to create the potion) but, instead, only once.
I don't think these house rules will have much impact on the PCs. That's because my experience has been that players find the idéia of magic item creation exciting but, in actual play, find the process uninteresting and inconvenient. It's interessante to quest for unusual raw materials or to secure obscure spells that will be used in item creation—those're adventures!—, but sitting around waiting for the metaphorical pot to boil is entediante. Likewise, it's mais conveniente to buy magic items—price be damned!—because a criação de the magic item from scratch expends more of the PCs' resources than just comprando the magic item outright (e.g. money contra feats, raw materials (i.e. "Ainda half the money!"), time, and spells—if that last is even a significant concern; see below).
Consider the dedicated wright
The only workaround I've seen PCs employ that encorajados item creation is a PC using a dedicated wright (Configuração de campanha Eberron 285) because then item creation didn't slow down the PCs! And consensus seems to be that when a magic item is created by a dedicated wright, the second bulleted house rule já applies—except that the prerequisite spells are cast at the process's começo rather than at the process's realização. (Ver aqui.)
War Story
In one campaign a PC had many item creation feats, but the PCs consistently put themselves on too tight of a clock to ruthlessly exploit the item creator's item creation abilities. It wasn't until the PCs were levels 19 and 20—the campaign nearing its end—that the item creator had time enough to do awesome stuff. Even then, though, it was easier to purchase, for example, several attuned gems of wish [univ] (PH 302-3) (9th-level spell at caster level 17) (33,100 gp; 0 lbs.) from the City of Brass than it was to wait over a month for the craftsman—or his wright—to make one.
So for the 2,100 gp price of a dedicated wright—assuming the DM allows a creature that participates in its creation to be considered the dedicated wright's owner (não a big assumption; Descobridor, for instance, describes how noncasters get homunculi)—, a creature can essentially take se off the item creation clock and put his servant on it instead so that item creation occurs, essentially, in the background, off-screen not on-screen. Further, the item's real creator need only cast the magic item's prerequisite spells uma vez. (In the War Story campaign, the PCs outfitted an poço envolvente (Compêndio de Item Mágico 159) (3,600 gp; 0 lbs.)—one of the game's mais deals—with a laboratory suitable for item creation and carried the cova with them, dedicated wright slaving away within, creating magic items whilst they adventured.)
That 2,100 gp is a sum small enough that I could imagine just awarding the effects of a dedicated wright to all PCs at levels 7 or 8 even in an otherwise normal campaign—like a house rule saying that a caster that possesses the appropriate item creation feat and that casts each prerequisite spell uma vez on a pile of appropriate raw materials eventually (i.e. when the appropriate normal amount of time for item creation has passed) causes the raw materials simply to transformar into the desired magic item, but a caster can only have one magic item in progress at a time. I don't foresee this Easy-Bake magic item process significantly ferir the campaign: the pieces are já there. Making this house rule available to todos no nível 1 is more significant, but wizards já ganhar D & D, so it's not a big deal if wizards win a pequeno harder while everybody else gets a leg up, too.
"Item creation feats for some, miniature American flags for others!"
I'm not sure opening up the item creation feats to any creature is the best choice. It's been my experience that those creatures that não have access to item creation feats are já the most feat-starved. While a rogue would love to, for example, craft his own wondrous items, he's mal fazer tradicional rogue stuff with his tiny number of precious feats! I suspect you'll find opening up item creation feats to noncasters means there may be um extra item creation feat in a traditional party of four, and I suspect the item creation feat may be one you didn't expect, like a barbarian taking Tattoo Magic (Raças de Faerûn 170) so that he can make inexpensive magic items he can activate while he's raging, or a rogue taking Craft Drilbu (The Mind's Eye Web column "The Crystalsinger (Prestiege [sic]
Class)") so as to push the limits of magic–psionic transparency. In short, this, too, is not a big deal… on an individual scale.
No campanha scale, however… wow. Remember: plebeus get feats. A level 1 human commoner can now take the feat Scribe Scroll (PH 99-100)—the universe yawns—, but então that same level 1 human commoner can take any one of the feats Exceptional, Extraordinary, or Legendary Artisan (ECS 52, 53, and 56, respectively) to significantly reduce the time, price, or XP cost of magic items he helps to create! Suddenly, those level 1 human commoners are extremamente popular with all the folks who can na realidade make magic items! Such a campaign should see magic item prices em geral drop by 25% and, I suppose, an overall rise in the standard of living for pretty much todos. And that's just to start. Like I said, this isn't particularly important to the PCs, but to maintain the setting's verisimilitude the fixação must accommodate this increased access to item creation feats… especially those that don't, per se, na realidade create items!
With all this in mind, I'm not sure your house rules accomplish your goals. I've already mentioned how this change likely should make magic items in general less expensive. Further, the game já allows the DM to change or nix—out of hand, for whatever reason—magic items, spells, or anything else the DM doesn't like, but the house rules afrouxar the DM's otherwise iron grip. That is, while it normally takes a number of scrolls equal to each 1,000 gp of the item's base price to make a spell completion or spell trigger magic item, instead that um scroll can make of that spell a wand, scepter (Impérios Perdidos de Faerûn 8), staff, or even varinha eterna (Compêndio de Item Mágico 159-60) or minor schema (Magia de Eberron 47), turning that one scroll into fifty or quase infinito copies of that spell! That spell the DM only put one scroll of in the campaign? Once it's found, it'll be out in the wild in short order, its DRM totally hacked. A campaign like this should have dezenas de milhares of crazy, niche spells because spell knowledge can spread tão rápido. That sounds fun and fascinating me, but I'm not sure that's what you're looking for. (But for comparison also see the obscure 6th-level Sor/Wiz spell the Hamagess' staffsprout [trans] (Mintiper’s Chapbook Web column "Part 10: Chronicler’s Compedium").
Finally, if a goal is to make crafting magical items accessible to any classe (though not necessarily any construir), that's goal's alcançado, but making something acessível doesn't necessarily make something desejável—a fighter will still likely find his feats better spent on fighting and a rogue's on… doing rogue stuff. They need aqueles feats doing what those feat already do to do what those caracteres need to do! To realmente test the long-term impact of this—which I haven't done—, a house rule would need to be made that says something like for every three, five, seven, ten or whatever levels a creature takes in classes that não cast spells—maybe even including the first—the creature gains a bonus item creation feat. Then see what folks pick and how that changes the campaign.
An aside: nuking item creation feats altogether
When I first read the question, I thought the house rules tb eliminated item creation feats—a fairly radical change but one not without precedent. That is, the Forgotten Realms supplement Marchas de prata includes a magic college, the Conclave of Silverymoon (62-3), where a creature that attends can supply the cash, spells, and XP but a hapless undergrad the item creation feat. The cost for this service? Ten percent of the magic item's price. (I should note that to receive this benefit—and several others—a wizard pays por ano 500 gp plus 500 gp per wizard level above 1 up to a maximum of 4,000 gp for a creature with 7 levels of wizard—a pricing scheme complicated enough to rival actual college. While this may sound like a lot of cash, amortizing this over a year to 77 gp a week should make it affordable in all but the most parsimonious of adventurers.) In other words, completely eliminating item creation feats and increasing magic item prices by 10% (plus, perhaps, a consummate increase in the cost of living?) is another possibility to consider, although such a change—unsurprisingly since it comes out of the Realms—hurts noncasters muito more than it helps casters.