Board Thread:General Discussion/@comment-25613119-20150302124809/@comment-25926288-20150319194040

Yay! According to Colin in the interview with Variety, " Hook befriends the young Ursula, and he agrees to help her because her father, Poseidon [Ernie Hudson], uses her voice to ruin pirate ships and run them into rocks, and she doesn’t want to do that."

So she has at least one more additional power along with tentacles and mermaid powers.