I don't think Agua's bad. I just think he gives his opponents too much credit. We've actually been thinking of some similar uses competitively. If only the thing weren't so gd loud.
Pretty sure the best use of it now is:
-Fuck people up with the ambassador
-whip out the Dead Ringer immediately before death
-Run away for health
-Repeat ad nauseum.
Actually. I'm off to test that right now.