I would suggest that you bring range equipment
I would suggest that you bring range equipment (I used 10 mith arrows on his ax, and at 61 range, I was bored of waiting around, so bring 50 if you wish to end the fight quicker) as well as a magical short bow! Anything that OSRS Gold can give prayer or magical defense is fantastic!
When the shaking ceases, you are able to put on your protection against magic and run across that bridge. You...