nice, I really like the vfx's... specially the thunder strike... but yeh; just like the previous commenter has suggested, some texts or a visual feedback from picking an upgrade to let us know what type of upgrades we got, would be nice to see.
I really prefer my games to have zero text but yeah I think this time around there should be more explanation shown.
doesnt necessarily need to be text, maybe some visual cues instead? I can understand where ur coming from though... looks alot cleaner without texts.