They'd experienced more diverse challenges during their service to him. They'd gained combat experience against varied opponents across multiple worlds. They'd benefited from whatever intangible advantages the summoning contract provided—the healing upon binding, the attribute enhancements, the guaranteed drops that ensured superior equipment.
The accelerated domain development was just another manifestation of that superiority. His summons weren't just bound servants—they were elevated beings operating at capabilities beyond what their base ranks would suggest.
Even those who hadn't completed their domain awakenings yet would likely succeed within days or weeks rather than the years or decades it took wild creatures. That gave Arthur a timeline—soon, very soon, he would command not just four domain-capable summons, but potentially dozens.
An army of second-order beings, all bound to his will.
