I think they just play like no other dualie. You could realistically get rid of Nova, Heavy Edit, Big Swig or Dread and nobody would miss them, but the Dousers have their own niche that would leave a gap if they were removed, especially with the new kit. The closest thing they really play like are Tetra and Glooga, but they're different enough to stand out. They can basically do anything, they can be a Slayer, a backliner, support, whatever you want. They have the most unique difference between their normal and turret modes. Turret mode is the real reason I love the Dousers. You can basically ignore turret mode on basically every other dualie as the sacrifice for damage isn't worth the movement disability outside of like, destroying the Rainmaker shield or destroying an object. But for the Dousers, it gives them access to a lot more unique plays, especially with them having the furthest dodge roll. My favorite strategy is just rolling off the side of a ledge for an ambush, they're really good at being able to quickly get off ledges or around corners for rushdowns. I think Douser was the last possible unique dualie, when we get new ones in S4 or somehow even in 3, it would probably just be another "base weapon that's a little sillier", maybe having like 6 tiny dodge rolls or something with less damage than Dapples.