The targets aimed at were indeed the Dwarves Elf spellcasters who had exposed their identities earlier by casting the Fireball Technique.
What they shot were not arrows, but rather thick, long spears.
Each Dwarves Elf spellcaster was targeted by at least two Golia Archers, and the chance of dodging two arrows at the same time was significantly reduced.
On the spot, several died instantly and many were severely wounded. Those who were hit would have their chances of casting spells again greatly diminished; with such heavy arrows lodged in their bodies, their movements and will were greatly affected.
Even if they could cast spells, the Dwarves Elf Commander dared not carelessly use the Fireball Technique to sweep the area again.
The previous wave of Fireball Techniques had limited lethality to the Golias, but it was absolutely terrifying to their own slave warriors.
The number killed by the blasts even surpassed the number the Golias had taken out in their initial charge.