What should I do?

I Give a modified Critical Strike to my hero.
This Critical Strike is useless(No Damage Added), and I change its name into "Lucky".
I create a trigger to do something when the hero learn this "Critical Strike", but I can't find the new name"Lucky" in the "Learned Skill" dialouge in the Condition dialouge.

What should I do if I want to know it when my hero learn the ability?

There's a player event that can detect if a unit owned by Player X learned (Ability Y).

Then you can use a condition to check which unit learned it if you want.

I like keeping track of the level by an integer value.... Setting a variable "SpellLevel" to (SpellLevel + 1).

I've tried, but didn't work!