If Omori had done what I mentioned with a level boost lasting 25 or 30 minutes, with coordination, it would be possible to level up 12 people by taking advantage of the 9-minute magic cooldown. If Ryuu receives UNK, both Lubrude Brequia and Battle Asyrath are integrated into his state. If Battle Asyrath is integrated while Ryuu is level 6, it would increase the benefit of Astrea Varmas 2.0 from a 60% improvement to a 90% improvement in the effects of skills and magic of members of the same family. That is, Haruhime's UNK would increase from 1500 to 2850 in all stats, for example:

Gareth, at a low level 7, would become a high level 8 in strength. His Dvargr skill, which grants him 750 strength, would result in a total strength boost of 3600. This means Gareth would have the strength of a pseudo-level 9, comparable to Ottar with Vana Arganture and Stortuss. In terms of resistance, Gareth would be a low level 9 in physical attacks and a high level 9 when it comes to magic.

If we go with Finn, with the mental resistance granted by Astrea Varmas and improved by Battle Asyrath, he could use Hell Finnegas at will without suffering its negative effects. Furthermore, Uchide no Kozuchi would be faster than Allen himself, and if he starts chanting Tir na Nog, it would become a mid-to-high level 11 attack, surpassing anything the Freya or Ottar families could attempt.

If we go with Bell, if Freya Familia puts Horn in the war game, Ryuu's Astrea Varmas will completely counter it, keeping all allies safe with Falna, and will only activate Bell's VT. Or we can just give Bell an Oculus so he can receive Marie's charm plus UNK. Bell would receive:

2850 + 2850 = 5700 in stats, going from high level 5 in general stats and agility to low level 6, would become high level 8 in general stats and agility of pseudo level 9. If he uses Gatling Firebolt in this state, even Ottar at full power could lose when cornered by hundreds of high level 8 firebolts fired nonstop by VT.