At lvl 70~80 for hard mode mage, there're some advantages
1. Steel wizards are killed by one combo, auto + lightning bolt
2. 4 stats are 10 (mastered?, in my case int, end, agi, and awa)
3. Lightning bolt dmg is about 200 (with no resistance)
4. Disintegrate dmg is about 300 (with auto, more than this)