An intriguing sorceress hailing from the future, she wields time-manipulating magic with ease.
A powerful sorceress possessing a deep-seated rage and the ability to control space and time.—Dissidia Final Fantasy description
Ultimecia is the evil future Sorceress who seeks to become a “living god”. As she explains to an unimpressed Cloud of Darkness:
Cloud of Darkness: “You dismiss us as mere pawns in this conflict. Yet you yourself struggle; fret over your plans. We are amused.”
Ultimecia: “I am not fool enough to surrender my will to some nebulous deity. That and nothing more. Perhaps bowing our heads and accepting our fate, as our opponents have done, is by far the wiser course. How you choose to embrace your fate is none of my concern. Unless you choose to interfere.”
Cloud of Darkness: “With your ‘time magic’? And what do you hope to accomplish with this power of yours?”
Ultimecia: “Time Compression. I shall freeze the hands of time on this petty squabble, and extinguish all other lives in this world but my own. That is what I plan to do with this ‘power of mine. Do you believe me, I wonder?”
By casting Time Compression magic, she can combine the worlds of the past, present, and future into a single point. There, she can rule over time and all things subject to it.
Where in the timeline did Chaos summon Ultimecia to World B? Perhaps generations in the future, where she resides waiting for SeeD. She can throw her consciousness into the past to possess other Sorceresses. Perhaps she can travel through dimensions and world, happening on World B?
Her defeat in World B may even be the prophecy which foretells her demise. Perhaps this is why she’s so anxious near the end of Final Fantasy VIII:
Sorceress Ultimecia: “…SeeD… SeeD……SeeD…… SeeD, SeeD, SeeD! Kurse all SeeDs. Swarming like lokusts akross generations. You disgust me. The world was on the brink of that ever-elusive ‘time kompression’. Insolent fools! Your vain krusade ends here, SeeDs. The price for your meddling is death beyond death. I shall send you to a dimension beyond your imagining. There, I will reign, and you will be my slaves for eternity. HAHAHAHAHAHAHAHA. Whom shall I exterminate first!? I’ll start with you three!”