If you are not yet ready to wear your true mask... then at least assume your totem. 
The Mask of Tengu was a bat-mask used by Batman in his training.
History
This mask was used by Lady Shiva when she murdered the Armless Master. After this, she gave the mask to Bruce Wayne when he was trying to recover his abilities to reclaim the mantle of the Bat. The Mask of Tengu made it easier for the Disciples of Armless Master to recognize the "killer" and confront Bruce to avenge their master's death. This was all part of Shiva's training, but after defeating all the Disciples, Bruce recovered all his skills and dropped the Mask in favor of his old Batsuit.