[quote=@GreivousKhan]
<Snipped quote by MelonHead>

You lack imagination if you can't see how water reaching/breaching could mess up someone who uses a liquid to move and fight. 
[/quote]

'Blood Bending' isn't allowed in Arena, it would fall under direct character manipulation.

That would be ridiculously OP, my character could seize control of the water in an opponent's body and drown them from the inside within a twenty foot radius if such a thing was allowed, which is why it isn't.