I have some suggestion for the current mage's skill :
1. Clock: bigger AOE area (change animation of the clock and sound) and able to pull in mobs, also include more dots damage as the dots now are not revised since i have started playing season 2.
2. Ice skill : artic shatter - increase to AOE ice patch chance and area... The ice patch is so tiny and hardly process
3. FB same as Clock increase the DOT damage and animation like fireball from the sky
4. Lightning: Electric Discharge for PVE increase 20-25% chance to explode and wider area.