
Originally Posted by
Norfindel
The only difference between a fantasy RTS and a sci-fi RTS, is that fantasy is much easier. Magic can perform anything.
If you want to have a spell that buffs all surrounding attacks, you can just say that they're magically enhanced, no further explanation needed.
In sci-fi, however, it needs some kind of explanation. If it does affect projectlile attacks, explosives, etc, it's kinda difficult to explain how the hell that works, but if the Protoss have the same, they use all-energy weapons now, so it's far easier. In general, as the Protoss have uber-advanced, completely alien technology, all based on psionics, that makes nearly everything easy to justify, while the Terrans are much more restricted, and need better explanations. The Zerg would be a lot more restricted, but they could have some kind of auras, like a regeneration aura, or a protection aura, both could be based on an unit that constantly emits a cloud of biochemical agents.
The bad news about Auras, is that the caster is on the center of the effect, so a protection aura could protect the caster itself, which makes the caster more difficult to take down. If there is a good explanation, the caster can be unaffected by it's own aura, like in the case of the Arbiter, but that's even more difficult to explain.