Thanks for the great feedback and for posting a video
Elemental reactions trigger when you use 2 different element attacks. So for example if you hit an enemy with water which has electric applied, you would do a shock reaction. The element icon you see is the element currently applied and from that you can trigger it with whichever other ability. If you see some additional vfx happen after your attack, it was probably a reaction.
I will make it so you can hold LMB to shoot and see how that feels but I'm not sure about forcing them to auto fire all the time just because sometimes I don't want to apply wind from the ranged basics. Idk will try stuff out.
Generally spells have short cooldowns, because I think it can be quite fun when you chain them together with the empowered versions by using mana while you also have reactions triggering and the autos are more just there for when everything is on cooldown. The game is most fun when you're parrying all the time (and the timing is pretty generous i would say) and you use all those mechanics which are not explained at all :D.
More than anything it seems I need a tutorial, to nudge the player to play in the most fun way and just have it overall not be confusing.