[Spell] How to make a trigger that starts when the unit cast an ability?

[Mr. Gameplay Knowledge]

How to make a trigger that starts when the unit cast an ability?

 

[Jampion]

This is the most common event used, to make triggered spells, because it runs after the cast was succesful (ability is on cooldown and mana was used)

• Unit - A unit Starts the effect of an ability

 

[Mr. Gameplay Knowledge]

Sorry,i meant a specific ability.
Edit:
Nvm.