DarklordKyo said:
I'm a bit of a n00b among Witcher fans (read only the first book at this point, mostly played the games), and, for anyone more knowledgeable, what exactly is Ciri capable of if she were to fully harness the power of the Elder Blood? (outside of the teleportation usable in game, and the dimension hopping she's apparently able to do in-story).
Ciri is a Source. Magic in the Witcher setting is fueled by The Power, which is basically raw energy of the cosmos. Sources are individuals who are living conduits of The Power, and the most powerful ones come from the line of Lara Dorren, an Elven maid who married a human and started a royal lineage across multiple kingdoms in the Northern Realms.
Sources are dangerous in that they can rarely control their powers, and can be extremely destructive. Ciri is unique in that she has some control over The Power, being able to bend it to her will. Ithlinne's Prophecy states that the world will be consumed by the White Frost (essentially entropy creeping through the multiverse to end all worlds in inevitable ice ages), and only a Child of the Elder Blood can defeat the White Frost by harnessing The Power. Technically, this saviour was supposed to be Ciri's offspring, hence why in the novels, Emhyr is so interested in her. He wants to have a child with her, even though she's his daughter, so her son can rise up, defeat the frost and conquer the world.
Thankfully by the end of the books, Emhyr goes back on this plan, being unable to bring himself to commit incest against his own daughter. So Ciri bamfs off to other worlds on her dimension hopping adventures, and becomes the Lady of Time and Space, and the only person left in the multiverse who can defeat The White Frost once and for all.
