Bloodarmor

Bloodarmor enchants the clothes and armor of the bloodknight with magic and enforces it. All he wears glows red for a while.

Tier 1:
Costs: 7 Blood
Casting time: 1 minute
Effect: +2AC
Duration: 10 minutes
Target: self
Tier 2:
Costs: 10 Blood
Casting time: 1 minute
Effect: +4AC
Duration: 15 minutes
Target: self
Tier 3:
Costs: 12 Blood
Casting time: 2 minute
Effect: +7AC
Duration: 20 minutes
Target: self
Tier 4:
Costs: 25 blood
Casting time: 1 free action
Effect: +15AC
Duration: 5 minutes 
Target: self