Spell Editing -- I'm not wowed

Am I missing something here?

It seems like really all I can do it make existing spells look different and change their mana costs and damage done. Big Whoop.

So am I missing something? Can I actually make a new spell and not just tweak existing spells?

Does anybody have a map that has cool NEW spells in it that I can look at just to see if I am missing something? So far I'm terribly underwhelmed with the possibilities.

You can also create new ones using the same code as another spell, and one of my favourite things to do is to make a trigger that does absolutely nothing, and then use a trigger that detects the spell and then i can make a custom spell with a trigger!

Yeah I was thinking of that trigger thing too, but it's not as smooth and it can be buggy unless you really test it.