Answer:
Scarecrow
Explanation:
Scarecrow uses his “brain” to devise a plan for crossing. He asks the Tin Woodman to chop down a tree forming a bridge over the gap. As they began to cross, two Kalidahs, frightening beasts with the heads of tigers and bodies of bears, start to chase the group. "They were all greatly pleased to see how easily he did it, and after the Scarecrow had got down from his back the Lion sprang across the ditch again. Dorothy thought she would go next; so she took Toto in her arms and climbed on the Lion's back, holding tightly to his mane with one hand"