Fighting steel gaurd is not too hard as it is lengthy. He has no skills, but has 90% magic resistance and 50% physical resistsance. Therefore, regardless of what level you are, using physical attacks would be best. The recommended party size is 3 people with one perferabbly a healer. While one person tanks the boss, another could get rid of surrounding mobs while the healer heals anywone who needs it. A fight with Steel Guard on average is 8 minutes long.