Daemons

All the special rules for daemons apply as described in the Warhammer rulebook. In particular note that the Flesh Hound has a saving throw of 4+ due to its daemonic intangibility or daemonic aura.

Collar of Khorne

The brass Collar of Khorne is forged from the heat of Khorne's rage at the very foot of the Blood God's brazen throne. The Collar absorbs and nullifies other enchantment. Because of this protection magic weapons cannot harm a Flesh Hound at all, and spells cast against them are automatically dispelled and will not work.

Fear

Flesh Hounds cause fear as described in the Warhammer rulebook.