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Old 02-17-2016, 09:16 AM   #4
Emerald Cat
 
Join Date: Oct 2015
Location: Cincinnati, OH, USA
Default Re: What does magic do?

I think that magic is only unnecessary if you are never going to do anything interesting with it. Claiming that magic exists in your setting is all well and good, but if it doesn't figure into the plot then you shouldn't include it.

On the other hand, magic becomes unwelcome if it is used to justify deus ex machinas ad nauseum. Imposing limitations on magic can help to avoid this situation. For example, having an equivalent exchange rule explain why mages can't blow up entire armies at will. This is very helpful for preserving drama and suspense.
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