The Argument For/Against Heal

[Jed]

I am planning on respec'ing soon, and I would like some advice on my skills.
Currently I am planning:
Stats: Pure INT
Skill Point Set:
Fireball(3/5): Engulf, Impact
Frost Bolt(3/5): Ice Wielder, Shiver
Gale Force(2/5): Weighted Wind
Time Shift(3/5): Time Bomb, Countdown of Pain
Passives-
Knowledge 5/5
Damage: remaining skill points
After reading many posts in many threads, I am finding that many people include Heal in their skill set, as it helps with both health and mana. However, I have also seen that "heal only saves about two [health] pots every [however long heal's cooldown is] seconds, so potting is a better option".
I am going for high-damage mage, mainly running Elites. Opinions?
Side note: I also absolutely love stuns and knock-downs.