Out of site ranged attacks : City of Heroes - Submissions

Get a long fence or wall between you and an enemy. Queue a ranged attack (without having line of sight to use it yet) then simply jump up. You will gain line of sight with your enemy for a split second with your jump height and then as you're landing your character will perform the attack through the wall. On the other end though the enemy's AI is too slow to do the same so you can continue to get free hits doing this. If the enemy tries to come to your side of the wall simply jump to the opposite. Continue to do this till the enemy is dead. If you have any hold/immobilization powers it will make this very very easy. Without hold/immobilize powers it will take some practice to do this without getting hit.