Discussion of the Magus Eternal
MindCrush: So he's kind of like Dax from Star Trek?
Not really. It's more that his predecessors have formed a gestalt entity (and when one of them dies, they join the entity) that exists in a weird kind of in his brain but not situation. They don't really talk to him or anything, and they don't take control of him. It's just that all the magical power they have can be used by Jason to do stuff. He doesn't have their memories, just access to their magic.
The thing is, most of the time, you make a binding deal with an entity then it basically says "you can now cast spells but you have to pay attention to me as well." You can cast the spell whenever but at times the being will appear to you and say "do some stuff, bitch," and you have to do it. The way Jason works is "you can cast our spells and you are sworn to fulfill your duty but we won't tell you what to do." So he has more freedom in that regard. Plus he already know some minor spells.
So a bit like Dax, I guess, but not entirely. It's kind of a strange system, which is how it should be because hey, magic.
Anyway, the Magus Eternal can tap into the power of the gestalt in order to cast magic. The focus of said magic is on the interaction between the Expanse and the physical world, and the control of the direct power of magic. So Jason can travel to the Expanse, and also then back to anywhere (so basically teleportation), he can see through the expanse (so basically scrying), since all of our minds are connected to the Expanse he can influence minds through it (so Telepathy and everything involved in that), he can move things between the worlds (so summoning and banishment of stuff) and he can call the power of the Expanse into the physical world to create stuff (so the generation of magical energy blasts and shield and constructs and so on. In DnD terms a Conjurer/Invoker).
He can't transmute matter and energy (if someone unleashed a lightning bolt at him, he couldn't absorb or convert or control that energy, but he could create a protective shield that deflects or absorbs or converts it). The only exception to this is magical energy, which he can control and manipulate with spells (countering spells, draining the power of others, empowering spells and so on). He can't heal wounds or raise the dead, he can't enhance his own body (he can create a force field around his body that simulates super-strength, but he can't actually make himself super-strong), he can't control space or time (other than stuff to do with the expanse).
Effectively, he is very, very powerful. But it's okay, because superheroes can be that, and his attention is generally focused on the Expanse which is, of course, a realm filled with beings of equal and even greater power.
