- Master must deploy both NPC Altria (Caster) in the starting lineup. There can only be one Altria (Caster) deployed.
- NPC Altria (Caster) is at Level 90, has NP Level 4, Skill Level 9/9/9 and is equipped with a custom Craft Essence that grant 50% Starting NP Gauge and increase NP Generation by 50%.
- The following effect will trigger every 3 turn as long as NPC Altria (Caster) is on the field:
- Child of Prophecy: Increase all allied Servants' NP Gauge by 30% and Attack by 20% (3 turn).
- At the start of the third turn, the following effect will trigger:
- Muramasa Support: Neutralize the effect of Barghest's [Foul Weather] status.
- The battle will end after Barghest's first Break Bar is depleted.
Guest Servant: Altria Caster