Sarda, the self-proclaimed Wizard Who Did It (in reference to the common cop out "a wizard did it" as an explanation for inconsistency and plot errors), is an evidently omnipotent wizard who is able to effortlessly manipulate reality itself and will readily do so out of sheer boredom.
Sarda plays a much more vital role in the comic than in Final Fantasy, where a character named Sarda only serves to let the player explore one dungeon.