A basic shield, A basic sword minus the combo abilities just a straight swing sword, mouse/keyboard directional based swings with a sword would be epic
Also, more gadgets, things that are not weapons that are E rated. Not even the fishing pole seems E rated but things like Jump Boots or Jet Pack are E Rated, More things like that.
What Fish can do but more equipment like, like the Jump Boots, Jet Packs which sit in the Hotbar and give you an ability from them which could be used for general gameplay loops rather than needing to use devices etc to do a double jump, side shuffle, fist punch or whatever