Golem

 is living stone conjured up by an ancient Magician. It is immune against physical attacks. A being of living stone that has been enchanted with black magic. It can recognize spell casting, but moves incredibly slowly due to its weight problem.

Trivia

 * In Jewish folklore, a golem is an animated anthropomorphic being that is created entirely from inanimate matter (usually clay or mud). Golems are created for one of three reasons: demonstrate mastery of the Kabbalah; a servant for labor; or to provide protection for the Jewish community.