Thanks for the reply.
I think ill try to make them in aseprite and import it to unity for now.
I think a few more impact and slash vfx would be cool, theres ones for arrows, a big curling swing like an axe, and the basic impact one could be an explosion or stab. But i wish there was one for a regular sword slash.
(https://kiddolink.itch.io/vfx-fx-slash-pixel-art a bit like this asset pack)
This pack is REALLY good, I especially love the word sprites, those have been fun to manually animate myself with wobbly text and palette shifting. I can be super creative with it