Hinduism...Which is the most enigmatic deity according to you?

Hinduism...Which is the most enigmatic deity according to you?

Do not forbid him;
for no one who does a mighty work in my name
will be able soon after to speak evil of me.
For he that is not against us is for us.

According to the Bhagvad Gita there is only one and there is no likeness of him.

Bhagav?n ?iva

Goddess Bhadrakali.

Mother Chhinnamasta & Mother Dhumavathi.