Translation guide
The ability to perform magic, supernatural force, or the strength of a magical effect. In Japanese, this is expressed through several nouns and compounds depending on whether you mean raw magical energy, spellcasting ability, or the potency of a specific magic.
magical power (general)
The supernatural power that fuels magic, often depicted as a measurable energy in fantasy settings.
He used up all his magical power.
This staff amplifies magical power.
Literally 'magic power', similar to 魔力 but less common. Sometimes used in RPGs or technical fantasy contexts.
an item that increases magical power
The skill or capacity to cast spells, often referring to a person's magical talent.
A natural phrase meaning 'the power of magic' or 'magical ability'. Can refer to both the force itself and the ability to wield it.
She helped people with her magical power.
Also used for personal magical ability, especially in contexts where magic is an innate power.
The strength or effectiveness of a particular magical act or enchantment.
Mystical or divine power not necessarily limited to spellcasting, such as that of gods or spirits.
魔力 (maryoku) is a compound noun that feels more technical or game-like, while 魔法の力 (mahō no chikara) is a more descriptive phrase that can sound slightly more narrative or natural in speech. Both are widely understood.
I don't have enough magical power.
Save the world with the power of magic.
彼は生まれつき強い魔力を持っている。
He has strong magical power from birth.
魔法の効力が切れた。
The magical power wore off.
霊力を使って悪霊を退治する。
Use spiritual power to exorcise evil spirits.