Echo shards as sonic boom ammo

Someone on reddit suggested using echo shards as ammo in a goat horn for using the warden's sonic boom attack. The echo shards would have to be held in the offhand and take about 2 seconds to load into a goat horn. Blowing the goathorn would trigger the attack and would not put the horn on cooldown. (Maybe this could be a use for the unused copper horn). Range and damage same as a wardens. It would not go ghrough walls though and would reflect back and damage the attacker if it hits amethyst blocks.