She is the 'baseline' hero. Every other ability trades for def/life, or trades def for life.
She is no slouch. She is hard to kill and is very consistent if given the right gear. If you throw a piece of armor on her, she is great. If you dislike risk or randomness, she is your rock. 6-8 def dice solves most the worlds problems.
Unless she's up against Chooloo.