You might as well wish to have Mei, Chojuro or GNW Tenten, only best water nukes, if you want to play Azure. Unless you want to play your main as nuke with high crit from shark bomb.
You can run the oldie, ie Sasuke, Kankuro or Tobi and Hinata. But this won't much effective to mid-late game, considering you're level 70.
GNW Tenten, you can hope to get her from Reanimated Treasure, she's pretty common as 2 stars.