There are several synonyms for the phrase "appear dramatically" that can add variety and excitement to your writing. Some possible options include "burst onto the scene," "storm onto the stage," "dramatically emerge," "make a grand entrance," "suddenly materialize," "take center stage," "command attention," "pivot into view," "burst into view," "suddenly appear," "enter in a blaze of glory," "strike a dramatic pose," and "announce their presence." Each of these phrases can help to convey a sense of spectacle and excitement, and can be used in a variety of contexts to add impact and interest to your writing.