Heart Kingdom Stage Clover Kingdom Equivalent Estimated Power Level & Capability
Stage 1: Magic Knight Captains
Mages who can take on an army alone. They have mastered Mana Zone or possess immense royal mana.
Stage 2 &3: Senior Magic Knights
The "Elite" of Clover. High-ranking nobles or commoners with extreme training (e.g., Klaus, Leopold).
Stage 4 & 5: Intermediate Magic Knights
Competent soldiers. They can cast high-level spells and maintain mana skin, but struggle against natural disasters.
Stage 5 & 6: Junior Magic Knights
The average soldier. Most commoners and low-level nobles fall here; they have a few solid spells but limited mana.
Stage 7 to 9: Peasants / Non-Combatants
Little to no combat utility. Their magic is used for daily chores (lighting a candle, watering a plant).
Almost all the captains in the beginning of the series were stage 1... Of course with the sole exception of Mereoleona Vermillion.
And most of the captains are Arcane stage mages (Fuegoleon Vermillion (Crimson Lion Kings captain)
Nozel Silva (Silver Eagle captain)
Mereoleona Vermillion (later an interim captain)
William Vangeance (Golden Dawn captain)
Yami Sukehiro (Black Bulls captain)
Dorothy Unsworth (Coral Peacock captain)
Jack the Ripper (Green Mantis captain)
)