Hey, thanks so much! :D
I saw your posts on the VisuStella server and I think Action Sequences is definitely the cleanest way to handle it. I haven't tinkered with it in the battle scene without plugins yet, but I would imagine it's possible to tie the common event to particular skills (and it'd also be possible to use that to alter the difficulty for certain skills too!).
Let me know if you run into any issues though and I'll see what I can do! <3