3 questions...

3 questions...

Is there a trigger command that finds out the the current spell level that a hero has? Also, is there a way to research spells at a building, then giving it to the hero without doing "If, Then, Else" 5 times over. Finally, I need to know which is better...Supersized complex triggers that does the job, or like 5 smaller triggers that does the same?

All are possible.

1. I suggest setting a variable (not sure real or integer, but one of them, to the level of "spell being casted").

2. I'm not sure, but why don't you give him a unit ability, and when he levels it up "Set Level of Ability" to level of the spell?

I'll let someone else answer no.3.

Best to put all the actions you need to perform in an action that fires off the right event. If you need to perform things in response to multiple distinct events, run multiple triggers.

1. Level of Hero-Ability
I use this one my own, and it's quite easy. There is already a method implemented to get this integer-value.
You simply have look carefully throug all possible sources for integer values and you'll find that one for sure.

2. giving heros an ability
you need only a normal trigger something like "Event: finishes research Condition: finished research = <the research you want to use> Event: add <ability> to <unit>" or "Event: pick every unit of (Owner of(Triggering Unit)) matching(UnitTypeof(matchingUnit=<hero-unit-type>)) and add <ability> to (Picked Unit)"

I hope this one isn't to complex ^^ but i have simply written it down as i have remebered it from me own trigger ^^

3. serveral small or one big trigger
i think there is no real difference in performance at this point, but there may be one at the ease with which you understand and re-understand the triggers you have created.
The easier for you to understand the better it is for you.

Another question, How do I get the black terrain? As in nothing there?