Manjusri

Manjusri is depicted as a male bodhisattva wielding a flaming sword in his right hand, representing the realization of  which cuts down ignorance and duality. The scripture supported by the lotus held in his left hand is a Prajñāpāramitā sūtra, representing his attainment of ultimate realization from the blossoming of wisdom.

Manjusri is often depicted as riding on a blue lion, or sitting on the skin of a lion. This represents the use of wisdom to tame the mind, which is compared to riding or subduing a ferocious lion.
My own experience with this bodhisattva is it is also a teacher of magic ritual, as well as transcendent wisdom. A mantra commonly associated with Manjusribis the following:

Om arapacana dhih
Tibetan pronunciation is slightly different and so the Tibetan characters read: oṃ a ra pa tsa na dhīḥ - om a ra pa tsa na d+hIH). In Tibetan tradition, this mantra is believed to enhance wisdom and improve one's skills in debating, memory, writing, and other literary abilities. "Dhiḥ" is the seed syllable of the mantra and is chanted with greater emphasis and also repeated a number of times as a decrescendo.

It is worth noting that adherent of Shugendo or shugenja/yamabushi carry a lion skin with them during their arduous mountain ordeals, and it very suggestive of veneration of Manjushri to the Shugendo monks.