You know how the Sudaraska and the Triglav are basically pieces of the Khorovod held together by energy? Well I think it would be a pretty cool visual appeal if after you charged the Sudaraska/Triglav, those pieces came back together and the whole sword glows in the sudarasuka/triglav's energy color. And then once the charge attack makes that slam and explosion, the sword goes back to its normal broken up appearance.

Same with the 5* elemental brandish lines. I think it would look cool if after you charged the brandish, the two sides of the combuster/voltedge/glacius came back together into a single blade that glows either red for combuster, blue for glacius, etc.

Admittedly it's really not a pressing issue and won't affect gameplay in anyway, but..... I think it'd look cool.