This icon was made especially for the hero Brutemane Champion's ability Tremor ability. Which worked sorta like a storm bolt, but erupted dust from the ground as it followed and stunned the target.
Could be usefull for a Tauren type of hero or for a smash ability.
Keywords:
tremor, tauren, island domination, nudl9, nudl, noodle, slam, groundblow, blow, shockwave, earthquake, eruption