Lilith, Please allow us to set a basic spell order in the Colosseum. As a dwarf, no I don't need to cast Favor, Cyclone, Rally (from divine gear), Spray and Pray, etc before I cast Fire Off. Additionally, I don't need to cast all of the above before Reload is cast. This is basic stuff here.... Black Hole->Fire Off->Reload.
This applies to other classes as well.