Just an idea, may be WAY OP, but i was thinking deep sub, maybe 41pts, no less than 31 pts talents, 10 min cd. blinds the closest 4 enemies for 5-10 seconds. the 5-10 could be on a random "roll" per each opponent, broken by damage etc as usual. Just an idea, a little more "control" to make up for the lowered damage that sub (hemo) has now.
Feel free to flame/tear holes into it, just an idea that came to me while not taking notes in english.