Hi all .
First , sorry my english.
I Found a hack , it is a no global cooldown hack , what is means : the spell doesnt cooldown.
1, Choose your spell what is have GLOBAL (!!!) cooldown (and need to be instant ) and search for it in Wowhead: It's all about elegance.
2, Copy the ID of your spell ( example: Improved Moonfire - Spell - World of Warcraft , the spell ID is 28854)
3, Open the cheat engine
4, Paste the ID and search for it
5, Change the value to 50000 and froze all.
Good luck
&
Have fun!