For 10 points, name this
According to a legend about this man, he nearly stepped o5f a cli5f while near some brigands, but before he could fall, the opposite cli5f approached him, closing the gap. Another story holds that he earned the esteem of his peers by recognizing a mistake in a mezuzah. He claimed to have spiritually ascended to heaven, where he was told the Messiah would come when this man's teachings had been widely spread. This rabbi, whose teachings were collected by Jacob Joseph of Polonne (yah-kohb yoh-sef "of " poh-lohn-eh), led a populist movement that adopted the spiritual and joyful elements of kabbalistic teaching while ignoring some of its complex rules. He was criticized by rabbinical authorities for encouraging his followers to drink and dance and for going among the people dressed like them. This man is regarded as the founder of a sect that includes the o5fshoot Chabad and whose groups are led by a Rebbe. For 10 points, name this "Master of the Good Name" who founded Hasidic Judaism.
According to a legend about this man, he nearly stepped o5f a cli5f while near some brigands, but before he could fall, the opposite cli5f approached him, closing the gap.
Baal Shem Tov [or Rabbi Israel ben Eliezer; or Besht]