Global configs for things like that SUCK.
I will be for sure banking against anything like that. Each monster should be individually configured to do exactly what it can/what is wanted. If you dont want it to cast first then change the script of that monster.
Also I hate people that use the word 'leet' just because someone says they like harder monsters because they are a vetran. He wanst touting his leetness, he was simply stating that he as an older player liked it that the monsters were hard.
Also, if youd like to have a little more fun with the monsters, set their mana to 75