In Iceborne, the Hunting Horn received several new melodies that can be played by combining the new echo note with any other note, except for white and purple. When combined with the orange note, the melody produced is Echo Waves "Dragon", which creates a shockwave that deals dragon elemental damage.
What is the motion value of this attack? Is it pure dragon damage, and does it scale with the weapon's attack like elemental ammo? If so, how?