If I recall correctly, Magus (or Gil) in Radical Dreamers supposedly had some time/space power. I forgot where it was teleportation, or time traveling.
As much as I hate to say it since I adore Radical Dreamers, this is unfortunately irrelevant. Radical Dreamers is not canon.
As for Shadow Magic, as I once theorized, Shadow magic seems to be the true magic in the CT world.
What I meant by that is that Lightning,Water/Ice and Fire combined create Shadow.
The most striking evidence for it was that Magus is a Shadow user but he can cast any other magic type spell.
I am not certain I would agree...all magic seems to be manipulation of reality...now while it is possible that Shadow is simply the combined effort to manipulate spacetime along with the other elements, it really seems uncertain at best.
I know there was a discussion saying that Heaven countered it, but Shadow doesn't counter Heavenly, Hellish would lol.
Quite frankily, even Shadow Magic has spells of every other magic type. Dark Bomb is almost like Flare, theres a shielding spell that would be a life saving type spell (lightning/heavenly) etc.
Well, see, it's not as if Heaven is pure and holy in any case, at least not in that sense. It's more associated with it, much like Shadow can be associated with evil. They are both in reality neutral but, as with many elements in so many other series--such as, say, Light and Darkness in Kingdom Hearts--they are not what they are associated as.
We also cannot assume that Shadow Magic can cast all other elements...Magus being the powerful sorcerer that he is suggests he may simply have learned a partial ability to utilize the other elements, and I would imagine Schala could do likewise, if not with greater proficiency. As he is the only example we have of true Shadow Magic we simply cannot determine this as of yet.
It kind of works out in the end because then it would explain why Crono and co's magic was called "primative" as their magic is of only one of the 4 elements in CT.
Thats why Crono and co are so limited in their spell usage, whilst Magus and the Zealians can do so much (Magus turned Glenn into Frog, Schala sealed a time gate and traversed dimensions etc).
Possibly. The other possibility--the one I prefer--is that everyone in Zeal seemed to perceive normal elemental magic as primative. They did dismiss the energy of the Sun Stone as soon as they got their hands on Lavos' as a power source. Since their magic is not fully innate but powered by the Mammon Machine, they are utilizing Lavos's own magical energy as magical power, and as such would view it to be more powerful and superior to the "primative elemental magic."
Magus and Schala can do so much more because unlike Crono and the gang they have had years, if not decades, of experience with magic, whereas Crono, Marle, Lucca, and Frog had, at most, six months worth of experience.