Omnimancer wrote:But I doubt everyone would be wary of it if there wasn't a grain of truth to the rumors.
It seems only natural to me that people would have an irrational fear of Predictamancy. People have a very understandable expectation of forward causation. They get bad news from a Predictamancer and they blame the Prediction because at an emotional level they can't understand backward causation and blame the Prediction for the bad outcome, instead of blaming the bad outcome for the Prediction. Even if Predictamancy never did a single bad thing, I would expect misunderstanding causation alone to give Predictamancy a bad reputation.
Omnimancer wrote:We don't know that Weatherbug was a self-fulfilling prophecy, but it definitely seems possible, and that alone is pretty scary.
I agree that self-fulfilling prophecy is worth watching for every time we encounter Predictamancy. It could happen, but we haven't yet had a clear example of it, so maybe it doesn't happen. In the particular case of Weatherbug it doesn't seem like a serious possibility considering how outnumbered they were, and every warlord seems to think that Digdoug would have made no difference. Warlords are the experts in that area and so they are almost certainly right, while Digdoug's doubts are more likely fueled by guilt and a caster's natural ignorance of combat.
Omnimancer wrote:If you try to fight it you'll inevitably fail, and this probably leads to self-fulfilling prophecies that doom sides.
Why is that probable? If the Prediction is the fall of the side, then struggling to survive should make the Prediction less likely to be true, not more likely. If you are fighting Fate then the Prediction is coming true in spite of giving everyone a warning, not because of itself. In order to be a self-fulfilling prophecy it would need to be especially tricky and trick people into causing the thing that they are trying to prevent. That requires a convoluted situation and it's not something that we should expect.
Omnimancer wrote:But completely trusting the prediction and following it blindly might also lead to disaster, since you might be taking drastic actions to follow a destiny that might not be worded clearly.
The Predictions of a Predictamancer aren't announcements from some supernatural authority that must be accepted as given, no questions asked. A Predictamancer is just a caster like any other, giving advice to a ruler or chief warlord, so if the wording is unclear in any way, the caster can be ordered to clarify it. You can sit down and have a long conversation with the Predictamancer until every aspect of the Prediction is fully understood; there's no need to depend upon interpreting a particular choice of words.
Omnimancer wrote:In addition to creating and enchanting items, it's possible that changemancers could do things like create gunpowder for bombs and rockets.
Fabrication with Motion is Dollamancy, so I suspect that gunpowder, bombs, and especially rockets all require Dollamancy, though I'm sure that a Changemancer would be very useful in conjuring the parts that the Dollamancer needs to build a rocket.
Omnimancer wrote:And the entangling bubblegum attack of a pink dragon might be a changemancy special. In combat a changemancer might be able to do things like unleash a cone of acid attack, or summon a sticky web to impede enemies, and other spells that involve summoning materials with harmful properties.
I think you're probably right about that. It would probably be a lot of fun to see a Changemancer in a fight.