- Anything below human level.
EX.
F- Early phase
F middle phase
F+ peak phase
F - Average Human to Peak Human(physically).
E - Low-Class Devils and Baby Familiars.
D - Mid-Class Devils, Full-Grown Average Familiars and Low-Class Dragons.
C - High Class Devils, High-Class Dragons and Minor Gods.
B - Ultimate Class Devils, Small Faction Leaders and Average Gods.
A - Dragon Kings, Devil Kings, Seraphs and Longuinus Wielders at their average prime.
S - Chief Gods and Evil Dragons.
SS - Super Devils and the Two Heavenly Dragons.
SSS - Primordial Deities.
God of bible , Shiva and Indra
Ex- Great Red, Ophis and Trihexa and
Argonos(mc)