[thread split] How to order a unit to cast a custom spell

How do you use a trigger to make a unit cast a custom spell when the issuable commands are only standard ones?

Try ordering the unit to cast the spell that the custom spell is based on. Also, in the future please don't post questions in threads that have nothing to do with the question.

Like what Anitarf said. If you're casting a custom stormbolt, then go to Human - Mountain King - Stormbolt. If you're casting a custom Tranquility, then go Night Elf - Keeper Of The Grove - Tranquility