Treachery! Admittedly, not aggressive treachery, but desertion in my hour of need nevertheless.
Note that in the time taken for you to distribute the endorphin blockers, the world has nevertheless become accustomed to my benevolent rule. The taste, in any case, creates a pschological addiction.
I am, in fact, residing within England, my homeland. Ah - don't you just love rain? I have constructed a large modern (Magically protected) castle. Made of a super dense steel created and maintaned with magic. Basically indestructable, it conforms to my every will. Including that of becoming a battle fortress. I'm just mentioning this; the universe you cleared was one of many, and when I say 'Fortress Universe', I mean that it cannot be broken into without unbelievable power. Nevertheless, my Power universe still exists, the main source of my magical energy, portected by a thousand -fold what the fortress universes were protected by, and guarded by me (essentially, I have deposited a portion of myself there, and can see and channel power through both forms). Don't even try.
I use my somewhat less elite but nevertheless adequate soldiers (Recruited from a favorable populace and armed with ) to seal off the water supply, preventing the distibution of the addiction blockers. This, along with a slight change in recipe (Three times the taste, twice the addictivity!) the world is quickly readdicted. The recipe has another effect, too. It contains nanobots (Non-contaminated clones of my previous nanobots) that remain in the consumers system, fighting anti addiction medication, disease, and cancer (Increasing my popularity - I just cured cancer!), in addition to reconstructing dead flesh and altering the physiological structure, turning all my subjects into powerful weapons. I, obviously, guard this technology closely.
I experiment with alternate beings within another timeline, recreating my Steel Knights, then sending them to guard both of your area of occupation (Automatons are destroyed on sight, Proteus employees merely watched closely). Note, Duckling, that the Steel Knights, if you have forgotten, are exeedingly vicious weaker versions of myself, totally loyal, battle hardened by their harsh lives and multiple vicious campaigns. Your automatons, despite their numbers, will be crushed if they attempt to advance. It is at this point that I open a rift within your shield, and nanobots, along with nanobot augmented Steel Knights, pour through, crushing your feeble automatons beneath their might of the Steel Empire. The populace harry your retreating forces, and nanobots dismantle all those who resist. I give you one chance - surrender or die!
As for Proteus, I feel that having you as an independent contractor would be beneficial - I offer you employment as, basically, a security firm - you handle most of my military issues, and I protect you from magical and uber-technological opponents. I propose a Hill share of 75:25, with myself as the main possessor.