Jabble

From the Super Mario Wiki

Jabble, the only named Jabbi seen so far.

Jabble belonged to the race of Jabbi that appeared in Paper Mario: The Thousand-Year Door. He resides in the great tree. Frightened of the recent relations between his kind and the X-Nauts, Jabble went into hiding in a corner located in a secret shop within the tree. If the player discovers Jabble, he could join Mario and the other Punis in their fight to rescue their home.

It is unknown what he does, though, whether it's shielding, attacking, or absolutely nothing.

[edit] Trivia

• He and Punio were known to be childhood friends.