There are so many "Old Republic" jedi that could be more powerful. But one that stands out is Nomi Sunrider. she is possibly one of the few Jedi to ever "defeat" a Sith Lord and Sith master (Exur Kunn, and Ulric Qel-Droma?) and she used a few forcepowers that are unique and maybe even forgotten by the time of the rebellion.
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Official XWA flight instructor
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