The suit's edged spikes are designed to tear the wearer's flesh as they move, slowly filling the suit with blood.
During step 10 of attack resolution reduce the successes on the damage roll by the number of injury levels. If successes still remain apply them as normal. If all the damage is cancelled out, apply all the damage successes to the attacker instead. Resistance Charms can be used against the rebounded attack, but if they depend of variables use the attacker's own traits since they struck the blow, such as Iron Skin Concentration. Since the attack has already hit, Dodge Charms, even perfect defences cannot be used against it.
When they put on the armour they immediately lose all -0 health levels.
An alternative idea is the character's number of injury levels is used as the armour's soak value. The armour is unaffected by piercing. When the wearer takes a fatigue roll, if the fail instead of incurring a -1 internal penalty they suffer 1 level of lethal damage. their fatigue rolls are unaffected by environmental factors. At a -1 wound penalty add 1 to the character's soak and the time between fatigue rolls. When their wound penalty rises above one multiply their soak and fatigue duration by their wound penalty.
The Deathlord who possessed this Monstrance was so impressed by it he created a Black Magitech device called the Blood Reaper Harness based on it to equip suicide squads. As the wearer suffers more and more injuries from the spikes they protrude and move further into the wearer's body as they cut through flesh eventually killing them but make them almost invulnerable until then.
Activation: the suit must be activated by pouring on sacrificial blood (a typical practice for activating Black Magitech.) the amount needed is generally equal to the object's artefact rating in magnitude of sacrificial victims, or the Essence of a supernatural being.
