Is Fated Shot the most energy efficient preparation friendly offensive method in CC? You can craft magical bullets in advance so you don't have to spend RE on creating energy bullets or enhancing regular ones. Depending on how fast the bullet is, how fast the guy you're shooting is, and how skillful FSD makes you you might not even have to spend RE on guiding the bullet to its target either. In which case you can attack people while using little to no RE or stamina.

With something like ACIT on the other hand, you can't prepare your fire in advance, it'd consume whatever you tried to contain it with or otherwise be a constant drain on RE. It's something you have to make and use on the spot. Not energy efficient or preparation friendly.