Shano!
You generally won't find parties anywhere anymore unless you or a friend are AFKing alts, but Kerbs are fast enough that you don't really need one anyways.
Personally I don't like light wave, it's a freaking turtle with its 2 second cast, which allows the mobs to shuffle around a bit. If you have enough MA to one shot kerbs with wind blade then just stick to that.
Bats are wind resist however, so if you want to grind them you'll probably be using light wave.