You can buff her with indirect buffs. Examples include Guns of Goliath, Agent Coyle, Divine Demonic, and Ritual Master. Still, the point of untouchable cards is that they are difficult to deal with, particularly since this one has flight as well. Also, she can be played early, if I recall, and gets stronger by hitting the fortress. It's good for decks that don't normally attack, since she won't attack unless she is by herself. This makes her ideal in DoD mostly, but CoV can also benefit from her.