MagicalMaster: That's the only infinite cantrip rod I know of. It's also the cantrip that does the most damage (1d4+1 rather than 1d3).
Why are you searching for a cantrip rod that does less damage?
Silentpayne: I'm asking if there are any mods out there that give infinite cantrip casting from the magic menu, like in the pen and paper version. Maybe I should have put that in the original message.
You have indicated an unfamiliarity with D&D. I shall now expound. Because D&D is important, because D&D called first, and no-one else had a published and widely-popular analogue. Arguably, there were others who might be a little earlier, but they were barely known in the niche hobby of wargaming, even at the time.
D&D 5th edition has infinite cantrips. NWN1 is based on D&D 3.0, and NWN2 is based on D&D 3.5. Neither of them had infinite cantrips. Indeed, a discussion of the differences could take up the next five pages without straying into uselessness.
Instead, I will simplify. No, that will take too long. I will sum up.
D&D 3.X was an attempt to create a rational, balanced system where the result of any action could be reasonably predicted. It was also the first role-playing game Wizards of the Coast ever made. (WotC bought D&D from TSR, which is a whole other long story)
Now, there's something in D&D memology called a "Fantasy Heartbreaker". That's when a new, but somewhat experienced gamer, decides to "fix D&D!" Typically, these remakes feature two to three of the following:
1) Some problems fixed.
2) Some problems introduced.
3) Too much complexity.
4) Not actually D&D
D&D 3.0 introduced a unified, rational system of ability-based skill checks, rational prices on common goods, a coherent system of ability gain as levels were gained , a unified system overall... And was unbalanced towards casters, to the point where the cleric and wizard can do anything any other class can do, and
better, and more often throughout the day as they gained in levels. And druids are arguably worse. Also, most of the splats was stuff for casters; even the supposed non-caster supplements. In addition, 3.X is the most complex edition of the game. NWN1&2, OTOH, are quite a lot more balanced.
In short, D&D 3.0 was an official fantasy heartbreaker...And wildly popular, to the point where D&D 3.5 is still somewhere around the 4-6th most popular tabletop RPG. The balance issues can be fairly easily addressed, as most of the abusive options are very well known by this point. And let me add, it is also my favourite edition, because it natively supports playing literally any race/class/ability combination, and is the most flexible edition. Which doesn't help balance.
D&D 5th is actually WotC's 4th edition of D&D, counting 3.0, 3.5, *4th, and 5th. Depending on how you count, there are 13 (or more!) editions of D&D. The major ones are Original D&D, Basic D&D, Advanced D&D 1e, Advanced D&D 2e, Advanced D&D 2.5e, D&D 3.0, D&D 3.5, D&D 4th, D&D 5th. WotC counts them as OD&D, AD&D, D&D 3.X, D&D 4th, and D&D 5th. Ask half a dozen D&D fans, and you'll likely get half a dozen different lists. It's a game over 40 years old, after all. ;)
And there. And yes, that is summing up. Heh.
* Some people will argue against counting this one, on the grounds that it breaks on #4. It was, however, very well balanced. And that's enough about that, lest this thread devolve into Yet Another Edition War. :)