If you were fortunate enough to pick the Thief class, or choose Master Key as your gift, you'll find a treasure called "Gold Pine Resin" in a locked room just before the steps leading up to the boss. There are only three applications, so make them count. It adds lightning attack to your sword, and gave me at least 5x the hit points on each swing. That tough boss had killed me at least 20 times before I thought to try it. And remember to clear off the tower just above the fog door...this is where you want to lead Taurus to fight him...lots of room to maneuver and dodge. Apply the resin, then get in close to his crotch and swing away.