Zennyth uses mostly just the metal from her dragon for basic weapons, such as kunai, swords, arrows, and things such as. These transformations are envoked by a spell (See Zennyth's magic list) and uses chakra for each, so transformations are limited per battle. Also, the metal can be made into a creature and animated as if it were living, so long as Zennyth's chakra held out. If her chakra did run out, or if she felt she had to terminate the spell, the metal would go back to the one form that doesn't require energy from Zennyth to maintain, the metal dragon. This drake isn't REALLY living, just seems it.