Okay so since people have gave some good arguments against why this spell would be unfun to play against I thought of a reworked version.
Summon 2 - 5 orbs (customisable)
Orbs will linger above shoulder for upto 5 seconds
The next magic attack or a re activation of the spell will send all the orbs flying at the cursor
Orbs will not attack automatically and will be launched at the cursor after 5 seconds.
The orbs will attack together and not one after the other.
It will function similar to a blast attack with more aoe and can be used with another spell
Before lost spells were removed from the trello, this was similar to one of them. The spell would have been an attack you can passively charge and, when ready to use it or at full charge, would fire where you were aiming. I am assuming it would be brought back and, in the customization, would allow you to have multiple orbs like Calvus.