No
Look:
You want to heal the unit.
Therefore you need to get the unit's current health, which is (Life of (Target unit of ability being cast) [sorry for forgetting to translate], correct?
And you have to add the amount you want to heal
Healing by 10 HP would be
-
Set life of (Target unit of ability being cast) to ((Life of (Target unit of ability being cast)) + 10)
Now as you want to base the healing amount off the hero's intelligence, you need to know that Attributes (Strength, Agility and Intelligence) are INTEGERS.
So we need to convert the integer to REAL (which is a hexadecimal number like 123.45 or 0.00).
Now you want to heal it by: intelligence*5 - that is
(Intelligence of (Triggering unit) (Exclude bonuses) x 5.0
Put all that together and you'll have the above action