What strengths did bewulf put to use in this epic poem?

The strengths Beowulf put to use over the course of the epic are superhuman. He tears Grendel's arm from his body with his bare hands, wields Grendel's mother's sword like it was made for mere mortals, and presents Grendel's head to Hrothgar by throwing it on the mead table with his own hands (it took four men to carry it to Heorot).