Spell Level with trigger how...????

Ok... how to level up a triggered spell cause in case the event is :
Exemple : A unit cast (thunder exemple)...

so thunder lv1 or lv 3 the same name... if i want to make different effect to each how im supose to do

sry for my bad english
thx :bgrun:

When a hero levels up... You have to set a variable to YourVariable = YourVariable + 1

Event:
A unit owned by Player X learns a skill
Conditions:
(Skill Learned) equal to YourSkillHere
Actions:
Set YourVariable = YourVariable + 1

YourVariable is an integer variable.
Now set your spell effects accordingly to what YourVariable's number is.

Regards
Dead-Inside

thx but another question

how to make a triggered spell hit JUST enemy... cause if you make a spell who say all unit in a radius of 500 it will hit allies
emote_sweat

Remove all your units or allied from the selected unit group.