In my opinion, the following are in fact the strongest beings\warriors of all time (a top 10 list):
- Teresa (self explanitory).
- Priscilla (self explanitory).
- Dauful (Riful and Dauf fused together) - they were formidable against Priscilla, whose power exceeds that of the Abyssal's Ones and in spite of that they were troublesome.
- Cassandra (repeadtedly agreed upon in the manga and evidently, stronger than the 2 other most powerful no. 1 [Hysteria and Roxxane] except for Teresa).
- Roxanne (kept up with Cassandra in battle for quite a long time).
- Miria (having keeping up with Hysteria as an Abyssal One is truly impressive and commendable).
- Hysteria (one of the 8th best no.1 warriors of all time).
- Isley - A powerful Abyssal One, strong enough to maim Luciela, infamous and feared throughtout the land for his might, strtegic and initative mind.
- Irene\Ilene (incredible prowess and analytical grandeurs - seen with developing the Quick Sword technique. Extremly knowledgable and astute).
- Galatea (brilliant Yoki perception, uncanny wisdom and adeptness. Her maturity and intelligence are at a high level, for example, she was mature and experienced enough to synchronize Clare's Yoki thus saving her from Riful's provocation to awaken).