Create this object, the katana elongates and lights up with yellow and blue elec

create this object, the katana elongates and lights up with yellow and blue electric flames that dance across its surface, with energy pulsing through the engravings, increasing in intensity as the wielder channels his will. the metallic material appears to stretch and mold into a new shape, maintaining the electric blue glow in details and edges, with engraved symbols that glow with electricity