Simile and mythological. The reason why is because a simile has like or as (acting "like" Hercules) and it talks about something that is a myth (Hercules.) It is not a metaphor since it has "like," it does have alliteration since it does have a repeated letter, it is not a hyperbole since it does not talk about anything so dramatic (instead, it was a simile,) it is not a literal language since it has simile and mythological.
Hope this helped!
Nate
Throughout this passage, Wiglaf is presented as a model of loyalty. When all other warriors act like cowards, retreating to safety, Wiglaf decides to risk his life and stand by his old king in this last battle. He still doesn't act as Beowulf's equal, but he nevertheless offers him support, as his sworn warrior. Beowulf is indeed encouraged by this act and manages to kill the dragon while receiving a mortal wound himself.