So far most of the mage skills in game are mostly summons. so why not add other skills that can make things a little more interesting?
Here are some of skills i can think of and these three are are all passives
Chain lightning
Causes lightning bolt to jump from each enemies but it loses its ability to pass through.
2/3/4 Jumps
mana cost: lightning bolt + 10/15/15
req. level 2 lightning bolt
Upcoming Blizzard
Charge a icy storm in front of you to your enemies.
mana cost: icy storm mana cost + mana for charging 4/2/1 at each level per second
req. level 2 Icy storm
Blaze
Burns enemies hit by fireball
burn damage 20/30/40
Duration 3 seconds
mana cost: Fireball + 10/15/15
Here are some of skills i can think of and these three are are all passives
Chain lightning
Causes lightning bolt to jump from each enemies but it loses its ability to pass through.
2/3/4 Jumps
mana cost: lightning bolt + 10/15/15
req. level 2 lightning bolt
Upcoming Blizzard
Charge a icy storm in front of you to your enemies.
mana cost: icy storm mana cost + mana for charging 4/2/1 at each level per second
req. level 2 Icy storm
Blaze
Burns enemies hit by fireball
burn damage 20/30/40
Duration 3 seconds
mana cost: Fireball + 10/15/15