Guild Wars 2

Bolt, Incinerator, Rodgort, and Frostfang now have a base elemental damage type. Note: This is a visual change only.

no idea, i tried to swing my dagger and attack mobs , nothing changed

Apparently it alters the death animation of enemies, but I have yet to test this out for myself.

I believe it refers to how if you use a lightning attack (or bolt) to kill an enemy, it’ll have an electrocuted animation, or a burning animation with fire attacks (or incinerator/rodgort) etc…