The uploader of that translated video linked a Dengeki interview that had a few extra small things worth mentioning in it.
https://dengekionline.com/articles/49323/
Specifically that it uses an attack mag like Hr and Et, the passive effects of voltage cap out at 500 (10% damage and 20% incoming damage reduction), but it can go higher (presumably so you can keep triggering shifta and deband and get more healing when it times out). At 500 voltage you also get a decreased cooldown on Luster Time from 240 seconds to 120 seconds.