Baku

The is a creature summoned by Danzō Shimura. It is a gigantic elephantine chimera with tiger-like limbs and bandages wrapped all around its head. According to Madara Uchiha, it is a monster that is said to devour dreams and nightmares and it was much bigger than he expected. Danzō summoned it to battle against Sasuke Uchiha, but it was forced to disappear when Sasuke launched a fireball into its mouth.

Abilities
The baku is said in legend to be able to devour dreams and nightmares. When it opens its mouth, it can create a powerful suction that sucks in everything within a large radius. Danzō attempted to use it to draw in Sasuke's Susanoo and also took advantage of the suction to increase the power of his Wind Release: Vacuum Serial Waves. However, the suction can be used against the baku. When Sasuke launched a fireball into its mouth, the suction increased its size and power.

Trivia

 * A is a mythological Japanese creature said to eat dreams and nightmares. As a chimera with an elephant's trunk, a rhinoceros' eyes, an ox's tail, and a tiger's paws, they resembled somewhat the real-life tapir. After the two creatures were connected, the baku was more and more often depicted as a tapir. Modern images depicting Baku as actual chimera are rare.
 * By using vacuum waves, it is suggested that the Baku has wind nature in it,although not able to release it.