Tera: Most of the time this brings small minions close to death and the caster can either use Fireball and finish each mob single handily or cast Ice Needle to create a piercing damage(tera gold) killing most of the enemies.
A sorcerer must keep his distance from the enemy at all costs. Flame Column might be a very useful tool but only recommended to use on enemies with a very low health, it is a perfect skill to finish off an enemy who remains alive after the sorcerer's main attack wave. Backstep will play a major role in the sorcerer's survivability, it would be very wise to shortcut this skill on a key with quick accessibility.
As many of us know, the sorcerer is nothing without its mana, luckily Mana Boost grants the sorcerer a brilliant ability to restore its mana during and/or after a fight. Most sorcerers will cast this skill on a tactical moment in order to keep their mana pool in top shape.