Help with Autoblink and Volcano please

Help with Autoblink and Volcano please

Volcano:
How do I change the damage of the fireballs that shoot out of the volcano? I don't know much about JASS, so any help would be good. I want them to do as much damage as possible (99,999 I think?).


Autoblink:
How do I set autoblink so that only one type of unit will autoblink? Example, I'm making a Hero Arena and I want my ultimate hero to auto teleport, but none of the other heros.

Thanks in advance for any help.