Uphold the Honour of the Emper

Vow • Models in this unit have a 5+ invulnerable
save. Each time an attack is made against this unit,
an unmodified wound roll of 1-2 for that attack
fails, irrespective of any abilities that the weapon
or the model making the attack may have.
Passion • Each time an enemy model makes an
attack against this unit, this unit does not receive
the benefits of cover against that attack.