Models on foot only.
Follows the rules for Shields (can be enchanted as if it was a Shield). For each successful Armour Save roll of 4+ made by the bearer against a Melee Attack while using a Spiked Shield, the bearer immediately inflicts 1 hit with the bearer’s Strength and Armour Penetration against the model that caused the wound, before any casualties are removed, distributed onto the model’s Health Pool. This is considered a Special Attack.