A flamberge is a sword with a characteristically undulating style of blade resembling waves or flames. The wave in the blade is often considered to contribute a flame-like quality to the appearance of a sword. While largely decorative, some attributes of the waved blade were useful in combat.[citation needed] The two most common flame-bladed swords are rapiers or Zweihänders, although there have been other such sword types.

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Flamberge (Wikipedia)