His drone was the only thing that would allow him to bypass the natural Aubility of the Vampires to stay unseen deep in the night. Their stealth didn't rely on the fabric of magic in reality. It actively rewrote it, making magic almost entirely unable to fight against it.
But his Drone wasn't entirely made out of magic. Its structure was made out of Mithril, a material made from the combination of all mana to create Unity, a power that could even contend with Aubilities. And the circuitry that made its flight even possible was all through the addition of Soo drops, making its power conform similarly to Aubilities.
This meant that the upgrades that he purchased in the Drone worked with both magic and Aubilities!
And it just so happened that there were a lot of options he could choose in the Drone shop that fit perfectly in this type of situation.
He looked deep inside his mind, finding the upgrade window of his Mithril Artifact.